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US Patent: 360,378
Plumb Level
Patentee:
Edward Duffy (exact or similar names) - Pawtucket, Rhode Island

USPTO Classifications:

Tool Categories:
layout tools : levels : inclinometers

Assignees:
None

Manufacturer:
Edward Duffy - Pawtucket, Rhode Island

Witnesses:
J A Miller, Jr.
M F Bligh
Patent Dates:
Applied: Nov. 08, 1886
Granted: Mar. 29, 1887

Patent Pictures:
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Report data errors or omissions to steward Bob Endellicate
Description:
A device or level for ascertaining the relative inclination or angle of a certain line or surface to a horizontal plane

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