Conrad T. Freerks

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Maplewood, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Abrading assembly
- Patent number 5,222,331
- Issue date Jun 29, 1993
- Minnesota Mining and Manufacturing Company
- Edward L. Manor
- B24 - GRINDING POLISHING
Information Patent Grant
Abrasive disc back up assembly
- Patent number 4,937,983
- Issue date Jul 3, 1990
- Minnesota Mining and Manufacturing Company
- Frederick R. Luecke
- B24 - GRINDING POLISHING
Information Patent Grant
Wet surface treating device and element therefor
- Patent number 4,523,411
- Issue date Jun 18, 1985
- Minnesota Mining and Manufacturing Company
- Conrad T. Freerks
- B24 - GRINDING POLISHING
Information Patent Grant
Apparatus and method for in-line planing of lumber using angled abr...
- Patent number 4,356,670
- Issue date Nov 2, 1982
- Minnesota Mining and Manufacturing Company
- Conrad T. Freerks
- B24 - GRINDING POLISHING