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Robert C. Durbeck
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Los Gatos, CA, US
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last 30 patents
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Patent Grant
Thermal drop-on-demand ink jet print head
Patent number
4,847,636
Issue date
Jul 11, 1989
International Business Machines Corporation
Robert C. Durbeck
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Patent Grant
Method and apparatus for typing characters and optically readable b...
Patent number
4,247,907
Issue date
Jan 27, 1981
International Business Machines Corporation
Robert C. Durbeck
G06 - COMPUTING CALCULATING COUNTING