Ivan B. Helmrich

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Kansas City, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Screen printing machine having three axes screen registration with...
- Patent number 5,901,646
- Issue date May 11, 1999
- Preco Industries, Inc.
- Christopher S. Walker
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Screen printing press having longitudinal, lateral and angular scre...
- Patent number 5,777,878
- Issue date Jul 7, 1998
- Preco Industries, Inc.
- Ivan B. Helmrich
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS