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US Patent: 1,777,429
Level
Patentee:
Richard C. Charlton (exact or similar names) - Philadelphia, PA

USPTO Classifications:
33/381

Tool Categories:
layout tools : levels : metallic levels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 08, 1926
Granted: Oct. 07, 1930

Patent Pictures:
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Report data errors or omissions to steward Russ Allen.
Description:
Lightweight open frame level with T-shaped cross section. Inventor indicates aluminum alloy is the recommended construction material.

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