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US Patent: 843,043
Surface Indicator
Patentee:
Jacob Sigrist (exact or similar names) - Poughkeepsie, NY

USPTO Classifications:
33/556, 73/104

Tool Categories:
layout tools : measurement gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
M. D. Blondel
E. B. McBath
Edward Wallin
Harry J. Dalzell

Patent Dates:
Applied: Jun. 13, 1906
Granted: Feb. 05, 1907

Patent Pictures:
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