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Siegfried Schumann
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Essen, DT
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last 30 patents
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Patent Grant
Coupling flange for a torque transmitting shaft
Patent number
4,053,248
Issue date
Oct 11, 1977
Gelenkwellenbau GmbH
Josef Schultenkamper
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...