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US Patent: 364,067
Calipers
Patentee:
Oliver D. Warfield (exact or similar names) - Chicopee Falls, MA

USPTO Classifications:
33/558.1

Tool Categories:
layout tools : calipers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Frank Eugen Hobart
J. Napoleon Lamoureux
Patent Dates:
Applied: Feb. 28, 1887
Granted: May 31, 1887

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