Derek M. Johnson

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Ypsilanti, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Automatic reserve or primary parachute activation device
- Patent number 7,073,752
- Issue date Jul 11, 2006
- Cybernet Systems Corporation
- Nestor Voronka
- B64 - AIRCRAFT AVIATION COSMONAUTICS

Patents Applicationslast 30 patents

Information Patent Application
Automatic reserve or primary parachute activation device
- Publication number 20050127243
- Publication date Jun 16, 2005
- Nestor Voronka
- B64 - AIRCRAFT AVIATION COSMONAUTICS