David N. Gehrich

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St. Paul, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for cleaning a screen by spraying and moving in a repeated c...
- Patent number 5,769,956
- Issue date Jun 23, 1998
- Intercontinental Chemical Corporation
- Albert B. Cord
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Oscillator screen cleaning apparatus and method
- Patent number 5,685,326
- Issue date Nov 11, 1997
- Intercontinental Chemical Corporation
- Albert B. Cord
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Oscillator screen cleaning apparatus
- Patent number 5,566,697
- Issue date Oct 22, 1996
- Intercontinental Chemical Corporation
- Albert B. Cord
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS