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US Patent: 49,710
Improvement in Spirit-Levels
Replacable Level Vials
Patentee:
Robert T. Burnett (exact or similar names) - New York, NY

USPTO Classifications:
33/388

Tool Categories:
layout tools : levels : level adjustments

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Wm. Greurn
C. L. Topliff
M. M. Livingston
Patent Dates:
Granted: Sep. 05, 1865

Patent Pictures:
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Report data errors or omissions to steward Ralph Brendler
Description:
This patent covers a simple inclinometer design that allows the level vial to be easily replaced of broken.

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