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US Patent: 423,284
Slide Calipers
Patentee:
Morris F. Smith (exact or similar names) - New Haven, CT

USPTO Classifications:
33/783

Tool Categories:
layout tools : measurement gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Samuel O. Warner
Joseph Kegelmeyer
Patent Dates:
Applied: Jul. 13, 1889
Granted: Mar. 11, 1890

Patent Pictures:
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