David C. Hobson

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Edgewood, WA, US

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Patents Applicationslast 30 patents

Information Patent Application
Hermetically sealed gas propellant cartridge for fire extinguisher
- Publication number 20050150665
- Publication date Jul 14, 2005
- Aerojet-General Corporation
- Paul H. Wierenga
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
Hermetically sealed gas propellant cartridge for fire extinguishers
- Publication number 20040216903
- Publication date Nov 4, 2004
- Paul H. Wierenga
- A62 - LIFE-SAVING FIRE-FIGHTING