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Hans-Gunther Christopher
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Berlin, DE
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last 30 patents
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Patent Grant
Pressure or draw bar of fiber-reinforced insulating material
Patent number
4,886,944
Issue date
Dec 12, 1989
Siemens Aktiengesellschaft
Hans-Gunther Christopher
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Patent Grant
Method for manufacturing a fiber-reinforced push or pull rod
Patent number
4,519,861
Issue date
May 28, 1985
Siemens Aktiengesellschaft
Hans-Gunther Christopher
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL