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US Patent: 25,446
Spirit-Level
Patentee:
Thad's S. Scoville - Rochester, NY

USPTO Classifications:
33/377

Tool Categories:
layout tools : levels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. Fraser
S. J. Allis

Patent Dates:
Granted: Sep. 13, 1859

Patent Pictures:
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Description:
This is a simple level/inclinometer that uses a half-filled flat glass "cistern" to indicate the level.

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