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DE1809877A1
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Drive device for shut-off and control valves
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DE1600800A1
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Butterfly valve or throttle valve or the like. for streaming media
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DE1500093A1
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Throttle valve, butterfly valve or the like. for gaseous and / or liquid media
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DE1450540A1
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Membrane to keep two adjacent rooms separate
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DE1030128B
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Gate valve with a locking piece
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DE927359C
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Seal for sealing against high pressures between flange parts
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DE972021C
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Condensate drain
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DE871237C
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Seal for moving machine parts
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CA815322A
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Device for keeping two adjoining chambers separate by means of a diaphragm
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CA722505A
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Slide-valve with a valve element covered by a diaphragm
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