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US Patent: 487,892
Beam Compass
Patentee:
William S. Robinson (exact or similar names) - Chicago, IL

USPTO Classifications:
33/27.033, 403/376

Tool Categories:
layout tools : compasses : trammels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George P. Fisher, Jr.
James H. Peirce
Patent Dates:
Applied: Aug. 23, 1892
Granted: Dec. 13, 1892

Patent Pictures:
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