John D. Hartley

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Winchester, GB

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for connecting data processing equipment to a communicati...
- Patent number 4,868,863
- Issue date Sep 19, 1989
- IBM Corporation
- John D. Hartley
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of making edge protected ferrite core
- Patent number 4,451,344
- Issue date May 29, 1984
- International Business Machines Corp.
- Robert W. Burkhart
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of making edge protected ferrite core
- Patent number 4,418,473
- Issue date Dec 6, 1983
- International Business Machines Corp.
- Robert W. Burkhart
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...