David H. Bennefeld

Follow

Person

Ramsey, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Ink jet printer with artifact-reducing drive circuit
- Patent number 5,969,729
- Issue date Oct 19, 1999
- ColorSpan Corporation
- Paul R. Erickson
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Heating control for thermal printers
- Patent number 5,608,442
- Issue date Mar 4, 1997
- LaserMaster Corporation
- David H. Bennefeld
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS