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Patent number:
Patent Date:
US Patent: 436,842
Parallel Ruler
Patentee:
Burnside E. Sawyer (
exact
or
similar
names) - Athol, MA
USPTO Classifications:
33/438
Tool Categories:
layout tools
:
squares
:
try squares
layout tools
:
protractors
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Henry H. Kendall
N. C. Lombard
Patent Dates:
Applied:
Jun. 11, 1890
Granted:
Sep. 23, 1890
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
Description:
This Patent was improved with Patent #
467,664
.
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