3M CO — Director's Dealing 2004

Oct 7, 2004

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2004-10-01

Reporting Person: Harlan Joe E (EXEC VP ELECTRO & COMMUN)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	7542	Direct
Common Stock	302	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non-Qualified Stock Option (right to buy)	$61.85	2013-05-12	Common Stock (17380)		Direct
Non-Qualified Stock Option (right to buy)	$64.5	2012-05-14	Common Stock (17380)		Direct
Non-Qualified Stock Option (right to buy)	$84.4	2014-05-09	Common Stock (18762)		Direct