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Method and device for introducing a gas into a body of water
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Energy storage system with spring
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Underwater, rotary drum aerating and saturating of fluid
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Device for stabilizing camping tables
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Reciprocating drive system for bicycle - has pedals operating eccentre which drives double armed levers connected to freewheel gear
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Two coaxial free wheel couplings on common shaft - have cam and levers converting linear movement into rotation
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Process for resistance welding chain links
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Heat -resistant protective coating for - metallic objects
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Device for removing the burr of chain links
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Chain welding machine
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Adjustment of multi-spindle drilling machines
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A device for trimming off the weld ridge on welded chain links
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Chain welding machines
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Apparatus for pressing crossbars into chain links
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Butt-welding of rod-like bodies
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Improvements in wire straightening and cutting off machines
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Device for bending one-piece chain links or the like
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Apparatus for securing together small parts by adhesive
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