William W. Ofca

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Hyde Park, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Shock tube initiating system for display fireworks
- Patent number 5,710,390
- Issue date Jan 20, 1998
- William W. Ofca
- C06 - EXPLOSIVES MATCHES

Patents Applicationslast 30 patents

Information Patent Application
Safe electrical initiation plug for electric detonators
- Publication number 20040231546
- Publication date Nov 25, 2004
- William W. Ofca
- F42 - AMMUNITION BLASTING