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US Patent: 1,295,180
Depth Angle-Gage
Patentee:
Louis Lowenstein - Detroit, MI

USPTO Classifications:
33/470

Tool Categories:
layout tools : measurement gauges : depth gauges
layout tools : bevels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Karl H. Butler
Anna M. Dorr
Charles W. Stauffiger

Patent Dates:
Applied: May 25, 1918
Granted: Feb. 25, 1919

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
This depth gauge features grooves milled in the head to allow it to be quickly and accurately set to 90, 60, and 30 degree angles.

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