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Karl-Heinz Bernhardt
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Lohr, DE
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last 30 patents
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Patent Grant
Hydraulic positioner with feedback device
Patent number
4,242,942
Issue date
Jan 6, 1981
G.L. Rexroth G.m.b.H.
Reiner Bartholomaus
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL