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Door or grating hydraulic or pneumatic closing mechanism - has duct pressure maintained after supply ceases, rendering use of lock unnecessary
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IMPROVEMENTS TO METHODS AND DEVICES FOR PRODUCING COMPOSITE PLATES, ESPECIALLY DOUBLE ICE CREAMS
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METHOD FOR THE PRODUCTION OF COMPOSITE PANELS, IN PARTICULAR COMPOSED GLASS PANELS
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METHOD AND DEVICE FOR THE PRODUCTION OF COMPOSITE PANELS, IN PARTICULAR COMPOSED GLASS PANELS
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Barrier chain hook for car parking space - has post mounted lock which closes hook against lock body
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Up-and-over garage door - has electric motor driven winch system with door guided by vertical and horizontal rails
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Non-distorting fire protecting door - has outside spanning connectors clamping insulating cover panels to tubular frame units
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Catch for rollers wound onto roller shafts - has guide compartment formed by flat surface of ratchet wheel along which locking piece rolls
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Fire proof door - has double walled metal cover plates with low melting point and a fire resistant filling
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CEILING DOOR WITH DRIVE DEVICES
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SHEET MEDIUM SILO
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ARTICULATED CEILING DOOR AND BUILDINGS, GARAGE BOX OR THE LIKE. WITH SUCH A GATE
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GARAGE FACILITY
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PARTITION ARRANGEMENT
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FOLDING DOOR ARRANGEMENT AT A WALK-THROUGH OPENING IN BUILDINGS
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FORMWORK ARRANGEMENT FOR CONCRETE STRUCTURES
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FORMWORK ARRANGEMENT FOR THE MONOLITHIC MANUFACTURING OF CONCRETE HOLLOW BODIES
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