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US Patent: 11,180
Calipers
Patentee:
Peasley Seaver - Oxford, MA

USPTO Classifications:
33/558.2

Tool Categories:
layout tools : calipers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Jas. G. Arnold
A. F. Clark

Patent Dates:
Granted: Jun. 27, 1854

Patent Pictures:
USPTO pdf tiff
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Description:
These calipers use an unusual arrangment of a captured nut and spring to allow a micrometer adjustment of the legs.

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