Robert L. Kramer

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Minneapolis, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Shotshell having pellets of different densities in stratified layers
- Patent number 6,202,561
- Issue date Mar 20, 2001
- Federal Cartridge Company
- Lawrence P. Head
- F42 - AMMUNITION BLASTING
Information Patent Grant
Frontally guided sabot bullet
- Patent number 5,175,389
- Issue date Dec 29, 1992
- Federal-Hoffman, Inc. d/b/a Federal Cartridge Co.
- Robert L. Kramer
- F42 - AMMUNITION BLASTING