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US Patent: 632,286
Plumb Bob
Patentee:
Albert A. Snebold - Natrona, PA

USPTO Classifications:
33/393

Tool Categories:
layout tools : plumb bobs

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John Groetzinger
H. E. Becker

Patent Dates:
Applied: Mar. 27, 1899
Granted: Sep. 05, 1899

Patent Pictures:
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Description:
Suspension cord is kept within the bob and can be extended/retracted by twisting a serrated collar.

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