Robert A. Ehrhardt, Jr.

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Palatine, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Self calibrating media edge sensor
- Patent number 7,391,043
- Issue date Jun 24, 2008
- ZIH Corp.
- Robert A. Ehrhardt, Jr.
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Ribbon drive and tensioning system for a print and apply engine or...
- Patent number 7,079,168
- Issue date Jul 18, 2006
- ZIH Crop.
- Kenneth Folke Ullenius
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ribbon drive and tensioning system for a print and apply engine for...
- Patent number 7,071,961
- Issue date Jul 4, 2006
- Zih Corp.
- Kenneth Folke Ullenius
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS