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US Patent: 68,603
Improvement in Adjusting Spirit Levels
Patentees:
Samuel N. Chapin - New Britain, CT
Augustus Stanley - New Britain, CT

USPTO Classifications:
33/383, 33/386

Tool Categories:
layout tools : levels : wooden levels

Assignees:
None

Manufacturer:
The Stanley Rule & Level Co. - New Britain, CT

Witnesses:
C. E. Mitchell
A. H. Stanley

Patent Dates:
Granted: Sep. 10, 1867

Patent Pictures:
USPTO pdf tiff
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Description:
A rubber or elastic bedding is utilized as well as the offset right angle plumb adjustment mechanism. Patent specifies construction with carefully seasoned cherry as the perferred wood of choice. Note that Samuel N. Chapin is not listed as a key member of any of the Chapin family toolmakers.

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