Roy W. De Meyer

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Oconomowoc, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Pneumatic differential pressure controller
- Patent number 4,637,546
- Issue date Jan 20, 1987
- Johnson Service Company
- Roy W. DeMeyer
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Electronic level detector
- Patent number 4,537,061
- Issue date Aug 27, 1985
- Magnetrol International, Incorporated
- Roy W. DeMeyer
- G01 - MEASURING TESTING
Information Patent Grant
Feeding mechanism for dual coin sorters operating in parallel
- Patent number 4,383,540
- Issue date May 17, 1983
- Brandt, Inc.
- Roy W. De Meyer
- G07 - CHECKING-DEVICES