Ralph A. Haus

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Lexington, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Non return to home rack shift selection mechanism for a single elem...
- Patent number 3,981,386
- Issue date Sep 21, 1976
- International Business Machines Corporation
- William A. Abell
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS