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US Patent: 279,460
Parallel Dividers
Patentee:
James B. Tetley (exact or similar names) - Pittsburgh, PA

USPTO Classifications:
33/558.03

Tool Categories:
layout tools : compasses : dividers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Michael Mahony
John O'Brien
Patent Dates:
Applied: Jan. 05, 1883
Granted: Jun. 12, 1883

Patent Pictures:
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