Bernhard Lersmacher

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Aachen, DT

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing grid electrodes for electron tubes
- Patent number 4,034,031
- Issue date Jul 5, 1977
- U.S. Philips Corporation
- Bernhard Lersmacher
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of manufacturing a porous carbon body
- Patent number 4,024,226
- Issue date May 17, 1977
- U.S. Philips Corporation
- Bernhard Lersmacher
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for the hot-working of glass
- Patent number 3,979,196
- Issue date Sep 7, 1976
- U.S. Philips Corporation
- Berthold Frank
- C03 - GLASS MINERAL OR SLAG WOOL