U.S. patents covering time keeping mechanisms

United States. Patent Office
United States Patent Office, 1892

Creator: United States. Patent Office

Published: United States Patent Office, 1892

Subject: History and Culture; Natural and Physical Sciences; Clocks and watches; United States

Topic: Manufacturing industries

No Copyright - United States

Cite This: View Citations

DOI: https://doi.org/10.5479/sil.490880.39088008063802

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