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US Patent: 69,602
Improvement in Plumb-Levels
Patentees:
John T. Zimmerman (exact or similar names) - Lancaster, PA
Henry Baker (exact or similar names) - Lancaster, PA

USPTO Classifications:
33/376, 33/398

Tool Categories:
layout tools : levels : pendulum levels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John M. Amweg
Jacob Stauffer

Patent Dates:
Granted: Oct. 08, 1867

Patent Pictures:
Zimmerman & Baker Pat. Oct. 8, 1867
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Description:
This plumb level device is designed to be clamped onto a straight-edge, is adjustable, and readable from several positions. The specifications differentiate this patent from nos. 49,802 (September, 1865) and 51,564.

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