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Patent number:
Patent Date:
US Patent: 269,719
Drafting-Instrument
Stairbuilders' Layout Devices
Patentee:
Henry C. Root (
exact
or
similar
names) - San Francisco, CA
USPTO Classifications:
33/415
Tool Categories:
trade specific
:
carpenter
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
N. P. Langland
H. Vandenbergh
Patent Dates:
Applied:
Jan. 23, 1882
Granted:
Dec. 26, 1882
Patent Pictures: [
1
|
2
]
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