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Axially extendible conduit
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Patent number 5,509,698
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Issue date Apr 23, 1996
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Helmut Habicht
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Modular butterfly valve
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Patent number 5,388,807
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Issue date Feb 14, 1995
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Helmut Habicht
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Butterfly valve
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Patent number 5,257,772
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Issue date Nov 2, 1993
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Helmut Habicht
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Modular butterfly valve
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Patent number 5,236,003
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Issue date Aug 17, 1993
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Helmut Habicht
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Rocker-type lump breaker
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Patent number 4,949,908
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Issue date Aug 21, 1990
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Helmut Habicht
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Rotary actuator
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Patent number D304834
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Issue date Nov 28, 1989
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Helmut Habicht
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D15 - Machines not elsewhere specified
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