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Johannes Petrus Hornman
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Eindhoven, NL
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Patents Grants
last 30 patents
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Patent Grant
Method of manufacturing a gas discharge panel and gas discharge pan...
Patent number
3,989,871
Issue date
Nov 2, 1976
U.S. Philips Corporation
Johannes Van Esdonk
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Picture display panel
Patent number
3,974,583
Issue date
Aug 17, 1976
U.S. Philips Corporation
Johannes Van Esdonk
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Gas discharge panel
Patent number
3,942,061
Issue date
Mar 2, 1976
U.S. Philips Corporation
Johannes van Esdonk
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Gas discharge panel having electrodes secured to flat insulating pl...
Patent number
3,936,688
Issue date
Feb 3, 1976
U.S. Philips Corporation
Johannes van Esdonk
H01 - BASIC ELECTRIC ELEMENTS