BOOKBINDING WIRE STOCK PRODUCTION METHOD AND APPARATUS
BOOKBINDING WIRE STOCK PRODUCTION METHOD AND APPARATUS Kenneth H. Dawson An illustrative embodiment of the invention produces comb-like bookbinding wire stock in a manner that significantly reduces wire breakage during manufacture as well as unequally stressing or stretching or marring the surface f...
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Format: | Patent |
Sprache: | eng ; fre |
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