Frank J. Doyle

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Downers' Grove, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Keyless lithography with single printing fluid
- Patent number 5,372,067
- Issue date Dec 13, 1994
- Rockwell International Corporation
- Frank J. Doyle
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Simplified lithography using ink and water admixtures
- Patent number 4,864,925
- Issue date Sep 12, 1989
- Rockwell International Corporation
- Eugene M. Van Kanegan
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS