Michael Schaefges

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Wheeling, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Spray dampening system having alternate application control
- Patent number 4,815,375
- Issue date Mar 28, 1989
- Ryco Graphic Manufacturing, Inc.
- Thomas G. Switall
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Variable frequency pulsed spray dampening system
- Patent number 4,649,818
- Issue date Mar 17, 1987
- Ryco Graphic Manufacturing, Inc.
- Thomas G. Switall
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS