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US Patent: 477,105
Caliper Rule
Patentee:
Samuel Darling (exact or similar names) - Providence, RI

USPTO Classifications:
33/812

Tool Categories:
layout tools : measurement gauges

Assignees:
None

Manufacturer:
Darling, Brown & Sharpe - Providence, RI

Witnesses:
Herbert Scholfield
Socrates Scholfield

Patent Dates:
Applied: Oct. 06, 1891
Granted: Jun. 14, 1892

Patent Pictures: [ 1 | 2 ]
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"Vintage Machinery" entry for Brown & Sharpe Mfg. Co.

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