John M. Hallis

Follow

Person

Buffalo, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method of forming a non-toxic frangible bullet core
- Patent number 5,894,645
- Issue date Apr 20, 1999
- Federal Cartridge Company
- John M. Hallis
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Non-toxic frangible bullet
- Patent number 5,852,858
- Issue date Dec 29, 1998
- Federal-Hoffman Inc.
- John M. Hallis
- F42 - AMMUNITION BLASTING
Information Patent Grant
Non-toxic frangible bullet core
- Patent number 5,852,255
- Issue date Dec 22, 1998
- Federal-Hoffman, Inc.
- John M. Hallis
- F42 - AMMUNITION BLASTING
Information Patent Grant
Non-toxic frangible bullet
- Patent number 5,679,920
- Issue date Oct 21, 1997
- Federal Hoffman, Inc.
- John M. Hallis
- F42 - AMMUNITION BLASTING