Herbert G. Leonard

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Louisburg, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Credit card/smart card test device
- Patent number 6,719,199
- Issue date Apr 13, 2004
- International Business Machines Corporation
- R. Kenneth Cotten
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic feeler gauge
- Patent number 6,438,858
- Issue date Aug 27, 2002
- International Business Machines Corporation
- Joseph Nelson Arnold
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Endless ribbon cartridge
- Patent number 4,236,678
- Issue date Dec 2, 1980
- International Business Machines Corporation
- Gerald C. Sienkiewicz
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS