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B&D-56 Price: $75.00 plus shipping. There are no markings on this brace other than "No.12" and I hesitate to disassemble the chuck while it is working satisfactorily. The patent is by William A. Ives, granted on May 7, 1872, and this brace appears to adhere literally to the patent drawing, except that this chuck has no residue of the spring mentioned in the text of the patent. Mr. Ives' claims are succinct:
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