Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
FARRELL W JAMES
   2. Issuer Name and Ticker or Trading Symbol
ILLINOIS TOOL WORKS INC [ITW] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chairman & CEO
(Last)
(First)
(Middle)
3. Date of Earliest Transaction (Month/Day/Year)
09/17/2004
(Street)

 		 4. If Amendment, Date Original Filed(Month/Day/Year)
09/21/2004		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 06/21/2004   S   2,920 D $ 92.5915 45,435 I See Footnotes (1) (2)
Common Stock 09/17/2004   M   350,000 A $ 33.375 395,435 I See Footnotes (1) (2)
Common Stock 09/17/2004   M   606 A $ 34.59 396,041 I See Footnotes (1) (2)
Common Stock 09/17/2004   S   151,992 D $ 91.8763 244,049 I See Footnotes (1) (2)
Common Stock 09/17/2004   F   65,740 D $ 91.8763 178,309 I See Footnotes (1) (2)
Common Stock 09/17/2004   F   28,959 D $ 92.04 149,350 I See Footnotes (1) (2)
Common Stock (3) (4) (5) 09/17/2004   M   38,000 A $ 55.875 230,754 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (6) $ 34.59 09/17/2004   M     606 11/23/1999 05/04/2009 Common Stock 606 $ 34.59 0 D  
Employee Stock Option (7) $ 54.62 12/12/1997   A   100,000   12/12/1998 12/12/2007 Common Stock 100,000 $ 54.62 100,000 D  
Employee Stock Option (8) $ 33.375 09/17/2004   M     38,504 05/03/1997 05/03/2006 Common Stock 38,504 $ 33.375 0 D  
Employee Stock Option (8) $ 33.375 09/17/2004   M     311,496 05/03/1997 05/03/2006 Common Stock 311,496 $ 33.375 0 I J.M. Investment Partners L.P.
Employee Stock Option (7) $ 58.25 12/11/1998   A   100,000   12/11/1999 12/11/2008 Common Stock 100,000 $ 58.25 100,000 D  
Employee Stock Option (7) $ 65.5 12/17/1999   A   200,000   12/17/2000 12/17/2009 Common Stock 200,000 $ 65.5 200,000 D  
Employee Stock Option (7) $ 55.875 09/17/2004   M     38,000 12/15/2001 12/15/2010 Common Stock 38,000 $ 55.875 412,000 D  
Employee Stock Option (7) $ 62.25 12/14/2001   A   400,000   12/14/2002 12/14/2011 Common Stock 400,000 $ 62.25 400,000 D  
Employee Stock Option $ 92.04 09/17/2004   A   23,069   09/17/2005 12/15/2010 Common Stock 23,069 $ 92.04 23,069 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
FARRELL W JAMES

 		   X     Chairman & CEO  

Signatures

 W. James Farrell by S. S. Hudnut, Sr. V.P., Gen. Counsel & Secretary Attorney-In-Fact POA on File   10/06/2004
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) 15,373 shares held in revocable trust.
(2) 133,977 shares held in JM investment partners L.P.
(3) 7,021 shares allocated to my account in the Illinois Tool Works Inc. Savings & Investment Plan -- Information reported as of 9/17/04.
(4) Includes Grant of Restricted Stock vesting over 3 year period: 12/16/03, 12/16/04, 12/16/05.
(5) Includes Grant of Restricted Stock vesting over 3 year period: 12/16/04, 12/16/05, 12/18/06
(6) Options received for 75 shares of Premark International pursuant to merger with ITW.
(7) Options vest in four equal annual installments beginning one year from date of grant.
(8) Options vest in five equal annual installments beginning one year from date of grant.

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