U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 203
vered, substantially asdescribed. 12. In a time-lock, the combination, with time-movements and a device to be unlockedthereby, of balanced connecting mechanismbetween the time-movements and the deviceto be unlocked, substantially as described. In testimony of all which we have hereuntosubscribed… … Wit Ma$ye.$
Clocks and watches
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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