Clamp for keeping tarpaulins under tension comprises elliptical ring which fits into eyelet, bolt being passed through ring to fasten tarpaulin down and ring being rotated so latch clamps it in position
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Holder for eyelet of e.g. tarpaulin, has bolt projecting from opening of eyelet, pivoted around specific angle in its bolting position, and pivoted from bolting position into its released position through re-rotation
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Plug connection generally useful in mechanical engineering, for detachable coupling of a matrix part connected to a first material element and interlocking with a punch part connected to a second material element
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Electrical plug coupling
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Push-button connection for releasably coupling an actuating knob of an extension of a male part
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Holder for photographs, documents, coins, postage stamps and similar items comprises a fixing section with holes whose open sides are blockable/unblockable by a movable strip in the channel of the fixing section
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Press button garment fastener has ring of teeth at under side of button to lock into complementary teeth at unlocking section in flat structure with exchangeable button
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Pressure button for connecting fabrics; has male and female sections with projection having sharp retaining edges
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Matrix fast tightener for dental purposes
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Device for filling dental cavities
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