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Control apparatus
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Patent number 6,050,296
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Issue date Apr 18, 2000
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Samson Aktiengesellschaft
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Heinfried Hoffmann
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Electrical-pneumatic system
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Patent number 5,699,824
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Issue date Dec 23, 1997
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Samson Aktiengesellschaft
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Lothar Kemmler
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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Position controller
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Patent number 5,404,744
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Issue date Apr 11, 1995
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Samson Aktiengesellschaft
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Heinfried Hoffmann
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G05 - CONTROLLING REGULATING
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Pneumatic control valve
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Patent number 4,925,498
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Issue date May 15, 1990
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Samson AG
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Lothar Kemmler
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Pneumatic control valve
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Patent number 4,922,952
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Issue date May 8, 1990
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Samson AG
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Lothar Kemmler
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Automatic control system
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Patent number 4,343,224
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Issue date Aug 10, 1982
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Samson Aktiengesellschaft
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Lothar Kemmler
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G05 - CONTROLLING REGULATING