David R. Cram

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St. Paul, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Tape roll liner/tab, application apparatus and method
- Patent number 6,617,007
- Issue date Sep 9, 2003
- 3M Innovative Properties Company
- David R. Cram
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Coreless adhesive tape winding mandrel and method
- Patent number 6,405,969
- Issue date Jun 18, 2002
- 3M Innovative Properties Company
- Harvey D. Ogren
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Tape roll liner/tab application apparatus and method
- Patent number 5,885,391
- Issue date Mar 23, 1999
- Minnesota Mining and Manufacturing Company
- David R. Cram
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Tape roll liner/tab, application apparatus and method
- Patent number 5,620,544
- Issue date Apr 15, 1997
- Minnesota Mining and Manufacturing Company
- David R. Cram
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL