Walter J. Zenner

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Mukwonago, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Dot matrix line printer and print element driver assembly therefor
- Patent number 4,539,905
- Issue date Sep 10, 1985
- Walter J. Zenner
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Control system for dot matrix line printer using one print element...
- Patent number 4,248,147
- Issue date Feb 3, 1981
- Walter J. Zenner
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Dot printer with electrically propelled ink
- Patent number 4,023,180
- Issue date May 10, 1977
- Walter J. Zenner
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS