- William Gurley, a mathematical instrument maker in Troy, New York, obtained a patent for a tripod head for surveying instruments, in 1878. This is the model he submitted with his patent application.
- William Gurley, “Tripod-Head for Surveying Instruments,” U.S. Patent 209,562 (Nov. 5, 1878).
- Currently not on view
- Object Name
- tripod head
- Object Type
- Patent Model
- W. & L. E. Gurley
- place made
- United States: New York, Troy
- overall: 4 1/2 in x 4 1/2 in x 3 in; 11.43 cm x 11.43 cm x 7.62 cm
- overall: 3 in x 4 1/2 in x 4 1/2 in; 7.62 cm x 11.43 cm x 11.43 cm
- ID Number
- catalog number
- accession number
- patent number
- See more items in
- Medicine and Science: Physical Sciences
- Data Source
- National Museum of American History
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