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Manfred Grubenmann
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Steckborn, CH
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Patent Grant
Switch having hemispherical pivotal cover actuator for movable leve...
Patent number
3,970,984
Issue date
Jul 20, 1976
Fritz Gegauf Aktiengesellschaft, Bernina-Nahmaschinenfabrik
Manfred Grubenmann
G05 - CONTROLLING REGULATING