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NX Patent: NX-3,150
Carpenters Square
Patentee:
Silas Hawes - Bennington, Bennington County, VT

USPTO Classifications:

Tool Categories:
layout tools : squares : carpenter squares

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Unknown

Patent Dates:
Granted: Dec. 15, 1819

Patent Pictures: [ 1 | 2 ]
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Essential Guide to the Steel Square
Description:
NX series patents are X-patents that do not have numbers. They have been arbitrarily assigned NX numbers to allow them to be entered into the Datamp file. We do not know whether they were actual patents as all that we have are the listings. They are entered here for reference and further research only.

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