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US Patent: 23,564
Calipers
Patentee:
Fayette Gould - Huntington, NY

USPTO Classifications:
33/795

Tool Categories:
layout tools : calipers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Timothy Carll
Francis M. White

Patent Dates:
Granted: Apr. 12, 1859

Patent Pictures:
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Description:
This is a set of machinist calipers that uses a gear-driven dial for reading instead of the usual vernier. It is a sort of primitive dial caliper.

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