A key delivers a series of key codes

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Patents Grantslast 30 patents

Information Patent Grant
Operator controlled programmable keyboard apparatus
- Patent number 4,200,913
- Issue date Apr 29, 1980
- International Business Machines Corporation
- Eugene Kuhar
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus for coding input data characters
- Patent number 4,072,820
- Issue date Feb 7, 1978
- Siemens Aktiengesellschaft
- Gerd-Joachim Gunther
- G05 - CONTROLLING REGULATING
Information Patent Grant
3617722
- Patent number 3,617,722
- Issue date Nov 2, 1971
- G05 - CONTROLLING REGULATING