Bjorn S. Bjerkvoll

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Raufoss, NO

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Patents Grantslast 30 patents

Information Patent Grant
Rocket with tracer charge and gunpowder rods
- Patent number 4,643,098
- Issue date Feb 17, 1987
- A/S Raufoss Ammunisjonsfabrikker
- Gunnar F. Gudbrandsen
- F42 - AMMUNITION BLASTING