U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 761
of the month, the year or other divisions of time, and a slot in the upper surface ofsaid top plate communicating with said hori-zontal aperture through which the periph-eries of said type-wheels arranged upon saidhorizontal shaft project, as and for the pur-pose set forth. In testimony whereof I… … TTjXriesses -IruuensCor,James J. £///oft ?£&£ru:
Clocks and watches
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