U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 19
t. ^ iTuuerCboT*: (No Model.) 6 Sheets—Sheet 4. 0. E. LUNDSTEDT. POSTAL DATE AND TIME STAMPING MACHINE. No. 472,951. Patented Apr. 12, 1892, Fig. 6 IV. … JE- IrujOTiZo-r. (No Model.) 6 Sheets—Sheet 5. 0. E. LUNDSTEDT, POSTAL DATE AND TIME STAMPING MACHINE. No. 472,951. Patented Apr. 12, 1892. Ftcj.ll
Clocks and watches
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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