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Patent number:
Patent Date:
US Patent: 680,830
Square
Patentee:
James A. Wray (
exact
or
similar
names) - Chicago, IL
USPTO Classifications:
403/323
Tool Categories:
layout tools
:
squares
:
carpenter squares
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
John L. Jackson
Albert H. Adams
Patent Dates:
Applied:
Jul. 05, 1900
Granted:
Aug. 20, 1901
Patent Pictures: [
1
|
2
]
USPTO
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Report data errors or omissions to steward Russ Allen.
Description:
Tongue and groove arrangement with a cut out screw to secure the pieces together.
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