US Patent: 57,588 - Improvement in Calipers


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US Patent: 57,588

Improvement in Calipers

Patentee:

Philo Soper (exact or similar names) - Buffalo, NY

USPTO Classifications:

33/501.5

Tool Categories:

layout tools : calipers

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Granted:	Aug. 28, 1866

Patent Pictures:

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Description:

This design for calipers provides a leg that can yeild a measurable amount, so that it can ensure that a part is within tolerance without resetting the tool.