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US Patent: 811,233
Stair-Marking Tool
Patentee:
Maxime LeBlanc (exact or similar names) - Montreal, QC Canada

USPTO Classifications:
33/456

Tool Categories:
layout tools : special purpose gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Frederick H. Gibbs
A. D. LeBlanc
John T. Deufferine

Patent Dates:
Applied: Jun. 05, 1905
Granted: Jan. 30, 1906

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Ralph Brendler
Description:
This is a specialized marking tool for laying out the mortises for stair treads

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