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US Patent: 1,282,670
Combined Lock and Butt Gage
Patentee:
Mathew F. Biersdorf - Los Angeles, CA

USPTO Classifications:
33/44

Tool Categories:
layout tools : marking gauges : butt gauges

Assignees:
None

Manufacturer:
Mathew F. Biersdorf - Los Angeles, CA

Witnesses:
Unknown

Patent Dates:
Applied: Oct. 18, 1917
Granted: Oct. 22, 1918

Patent Pictures: [ 1 | 2 | 3 | 4 ]
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Description:
This is a simplification of Mathew Biersdorf's 1915 patent (1,142,138), which retains the interesting features of the original, but makes it easier to produce and set.

The production pieces are marked only "MFB", so it is assumed that Mr. Biersdorf produced the tools himself.

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