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US Patent: 1,419,567
Hammer Gauge
Combination Hammer and Measuring Gauge
Patentee:
Peter F. Johnson - Oakland, CA

USPTO Classifications:
33/648, 473/282, 7/146, 81/20

Tool Categories:
woodworking tools : hammers
rules : measuring rods

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 07, 1920
Granted: Jun. 13, 1922

Patent Pictures:
USPTO pdf tiff
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Description:
This patent covers a standard hammer with the addition of a measuring rod which can be extended from the butt of its handle. This allows the hammer to be used for spacing out nails or shingles.

The measuting rod is made of a flexible material, so that it will not interfere with the hammer in use.

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