Patent Model - Knob Attachment
Maker and role
Emery Parker, Patentee
Oct 06 1885
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3 x 6 x 5 1/2" (7.6 x 15.2 x 14cm)
Parker's patent's objective "is to provide a simple, cheap, and efficient means for securing knobs to the spindles in locks and latches, and particularly to do away with the side screws, which are the most objectionable feature used in the common form or knob and spindle." (Patent Number 327,820)
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