Robert L. Hillberg

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Chesire, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Firearm magazine safety mechanism
- Patent number 4,291,481
- Issue date Sep 29, 1981
- Wildey Firearms Company, Inc.
- Robert L. Hillberg
- F41 - WEAPONS
Information Patent Grant
Firearm grip assembly
- Patent number 4,221,066
- Issue date Sep 9, 1980
- Wildey Firearms Company, Inc.
- Robert L. Hillberg
- F41 - WEAPONS
Information Patent Grant
Firearm hammer blocking safety mechanism
- Patent number 4,208,947
- Issue date Jun 24, 1980
- Wildey Firearms Company, Inc.
- Robert L. Hillberg
- F41 - WEAPONS
Information Patent Grant
Magazine isolator for pump shotguns
- Patent number 4,141,164
- Issue date Feb 27, 1979
- Browning Arms Company
- Robert L. Hillberg
- F41 - WEAPONS