Peter R. Johnson

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Patents Grantslast 30 patents

Information Patent Grant
Coin validators
- Patent number 5,373,929
- Issue date Dec 20, 1994
- Mars Incorporated
- Michael Chittleborough
- G07 - CHECKING-DEVICES
Information Patent Grant
Coin testing apparatus
- Patent number 4,625,851
- Issue date Dec 2, 1986
- Mars, Inc.
- Peter R. Johnson
- G07 - CHECKING-DEVICES