Margaret A. Hartfel

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Minneapolis, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Slip control sheeting and articles covered with same
- Patent number 5,491,015
- Issue date Feb 13, 1996
- Minnesota Mining and Manufacturing Company
- Mark E. Reeves
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Slip control sheeting and articles covered with same
- Patent number 5,234,740
- Issue date Aug 10, 1993
- Minnesota Mining and Manufacturing Company
- Mark E. Reeves
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL