Ralph L. Michael

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Lake Forest, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for safely lowering user from structure with t...
- Patent number 8,695,759
- Issue date Apr 15, 2014
- Ralph L. Michael
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Apparatus and method for safely lowering user from structure
- Patent number 8,534,420
- Issue date Sep 17, 2013
- Ralph L. Michael
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Apparatus for safely lowering user from structure
- Patent number 8,167,090
- Issue date May 1, 2012
- Ralph L. Michael
- A62 - LIFE-SAVING FIRE-FIGHTING

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS FOR SAFELY LOWERING USER FROM STRUCTURE
- Publication number 20120061183
- Publication date Mar 15, 2012
- Ralph L. Michael
- A62 - LIFE-SAVING FIRE-FIGHTING