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US Patent: 426,502
Calipers or dividers
Patentee:
Thomas Isaac (exact or similar names) - Sacramento, CA

USPTO Classifications:
33/558.05, D10/73

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Michael Fisher
Richard Vaughan
Patent Dates:
Applied: Jan. 03, 1890
Granted: Apr. 29, 1890

Patent Pictures:
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