Bernard W. Rivkin

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Poway, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Low profile wheel system
- Patent number 4,752,986
- Issue date Jun 28, 1988
- Bernard W. Rivkin
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Semi-permanent filing, flagging and indexing system
- Patent number 4,637,149
- Issue date Jan 20, 1987
- Bernard W. Rivkin
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER