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US Patent: 610,952
Level
Patentees:
William Stettler (exact or similar names) - Allentown, Lehigh County, PA
Thomas M. Wilhelm (exact or similar names) - Allentown, Lehigh County, PA

USPTO Classifications:
33/388

Tool Categories:
layout tools : levels : inclinometers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Oct. 11, 1897
Granted: Sep. 20, 1898

Patent Pictures:
USPTO (New site tip)
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