Robert L. Kramer

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Minneapolis, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Non-toxic rim-fire primer
- Patent number 5,610,367
- Issue date Mar 11, 1997
- Federal-Hoffman, Inc.
- Jack A. Erickson
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Non-toxic primer
- Patent number 5,547,528
- Issue date Aug 20, 1996
- Federal-Hoffman, Inc.
- Jack A. Erickson
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Non-toxic primer for center-fire cartridges
- Patent number 5,466,315
- Issue date Nov 14, 1995
- Federal-Hoffman, Inc.
- Jack A. Erickson
- C06 - EXPLOSIVES MATCHES