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US Patent: 472,829
Trammel
Patentee:
Silas E. Selleck (exact or similar names) - West Troy, NY

USPTO Classifications:
33/27.031

Tool Categories:
layout tools : compasses : trammels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
W. W. Robson
W. H. Mullins
Patent Dates:
Applied: Aug. 28, 1891
Granted: Apr. 12, 1892

Patent Pictures:
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