David Hoffman

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Hillsdale, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Price setting and display system for multiple unit merchandising ma...
- Patent number 4,677,777
- Issue date Jul 7, 1987
- Rowe International, Inc.
- David Hoffman
- G07 - CHECKING-DEVICES
Information Patent Grant
Apparatus for preventing circuit burn-out in multi-price merchandisers
- Patent number 4,466,528
- Issue date Aug 21, 1984
- Rowe International, Inc.
- David Hoffman
- G07 - CHECKING-DEVICES
Information Patent Grant
Coin mechanism to merchandising machine interface
- Patent number 4,284,184
- Issue date Aug 18, 1981
- Rowe International, Inc.
- David Hoffman
- G07 - CHECKING-DEVICES