Inside Out Library · Explore
U.S. patents covering time keeping mechanisms (1923)
United States. Patent Office · [Washington, D.C.] : U.S. Patent Office · leaf 336
Apr. 3, 1923. 1,450,264 H. J. SCHITTERER SWIVEL HOOK FOR WATCH CHAINS Filed Nov. 16, 1921 / i 3 2 FIG / … m. z. 7 % F/6. 3- 9, 2 A F/G. 4-. INVENTOR. J{erma7i J.Schittere?1 ATTORNEY .Clocks and watches
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
More pictures from U.S. patents covering time keeping mechanisms
More like this
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-1043-543.webp)
