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Patent number:
Patent Date:
US Patent: 447,642
Trammel Head
Patentee:
Reinhold G. Hausdörfer (
exact
or
similar
names) - Zanesville, OH
USPTO Classifications:
33/27.031
Tool Categories:
layout tools
:
compasses
:
trammels
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Joseph Scholl
D. B. Linn
Patent Dates:
Applied:
Sep. 18, 1890
Granted:
Mar. 03, 1891
Patent Pictures:
USPTO
(New site tip)
Google Patents
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