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US Patent: 1,341,481
Combination-Gage
Patentee:
Wellington Salt (exact or similar names) - Buffalo, NY

USPTO Classifications:
33/44

Tool Categories:
layout tools : marking gauges : butt gauges
layout tools : marking gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 17, 1918
Granted: May 25, 1920

Patent Pictures: [ 1 | 2 ]
Flat variant
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Description:
This is a compact butt gage that can double as a mortise gage. The tool is quite small, which would make for an excellent butt gage, but it would probably be too small to be useful as a mortise gage.

Of particular interest on this patent is a variant shown in the drawing where the body is made in a 'V' shape rather than flat. This would allow the two scribes to not interfere with each other when being used to mark the hinge thickness.

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