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US Patent: 348,674
Combined Panel-Gage, Measuring-Rod, And Trammel
Patentee:
Frank A. Humphrey (exact or similar names) - Worcester, MA

USPTO Classifications:
33/42

Tool Categories:
layout tools : marking gauges
rules : measuring rods
layout tools : compasses : trammels

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Charles Burleigh
S. R. Barton
H. P. Barton

Patent Dates:
Applied: Apr. 29, 1886
Granted: Sep. 07, 1886

Patent Pictures:
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Report data errors or omissions to steward Ralph Brendler
Description:
A telescoping panel gage with micrometer adjust and built-in trammels. This gage and his other patented design (349102) use a locking mechanism supposedly patented by same inventor, but the number in the specification (199,275) is a different patent.

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