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US Patent: 484,575
Mechanic's Square
Patentee:
Eduard Wetterhahn (exact or similar names) - St. Louis, MO

USPTO Classifications:
33/480

Tool Categories:
layout tools : squares

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. Ind. Neudorf
C. F. Keller
Patent Dates:
Applied: Jul. 05, 1892
Granted: Oct. 18, 1892

Patent Pictures:
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