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Wire forming machine
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Binder with individually operable binder rings
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Contents indicator for binder covers
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Spring means for holding the operating shaft of a punch in the punch open position
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Punch for perforating sheets to receive the rings of mechanical bindings
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Press for closing the rings of mechanical bindings
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Automatic lift separating and feeding mechanism
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Round cornering machine
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Manufacture of binder members for filing documents
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Automatic paper punching machine
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Machine for bending a flat wire strip for ring binders
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DE928643C
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Wire bending machine
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CA522082A
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Automatic paper punching machine
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CA576534A
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Automatic lift separating and feeding mechanism
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