Robert K. Chan

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Irvine, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Vending machine with mechanised freezer door and failure control de...
- Patent number 5,975,348
- Issue date Nov 2, 1999
- KRh Thermal Systems
- Paul T. Rudewicz
- G07 - CHECKING-DEVICES
Information Patent Grant
Vending machine including multiple failure control devices
- Patent number 5,799,822
- Issue date Sep 1, 1998
- KRh Thermal Systems
- Paul T. Rudewicz
- G07 - CHECKING-DEVICES