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US Patent: 2,802,271
Angle Establishing and determining device
Patentee:
Clyde I. Welch (exact or similar names) - Pasadena, CA

USPTO Classifications:
33/464

Tool Categories:
rules : rule attachments
layout tools : protractors

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Unknown
Patent Dates:
Applied: Dec. 23, 1954
Granted: Aug. 13, 1957

Patent Pictures: [ 1 | 2 | 3 ]
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Description:
One of these appeared on ebay with the patent number and HAND-D-COMBO.

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