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CA Patent: CA-2,450
Circular saw teeth
Patentees:
Nelson Johnson (exact or similar names) - Jasper, NY
Willis E. Craig (exact or similar names) - Newkarket, ON Canada

USPTO Classifications:

Tool Categories:
woodworking machines : circular saws : insertable saw teeth
woodworking machines : machine and tool cutters : insertable saw teeth

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Jun. 11, 1873

Patent Pictures:
CIPO Data
Report data errors or omissions to steward Jeff Joslin
Description:
This invention was earlier granted U. S. patent 200,833, which was granted to Nelson Johnson. It appears that the Canadian co-inventor was added to skirt Canadian patent laws that made it difficult for non-Canadians to be granted a patent.

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