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US Patent: 813,095
Trammel
Patentee:
John F. Hottman - Dubuque, IA

USPTO Classifications:
33/27.031

Tool Categories:
tool making : making handsaws
layout tools : compasses : trammels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Louis C. Kolfenbach
Robert E. Hagerty

Patent Dates:
Applied: Apr. 07, 1905
Granted: Feb. 20, 1906

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
Adjustment/set screws on each side of the trammel point that allows precise adjustment.

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