CA Patent: 4,828 - Clamping attachment for vises


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CA Patent: CA-4,828

Clamping attachment for vises

Patentee:

Ezra Caswell (exact or similar names) - Lyons, NY

USPTO Classifications:

Tool Categories:

work holding : vises

Assignees:

None

Manufacturer:

Ezra Caswell - Lyons, NY

Witnesses:

Unknown

Patent Dates:
Granted:	Jun. 09, 1875

Patent Pictures:

CIPO Data
Report data errors or omissions to steward Carl Matthews
"Vintage Machinery" entry for Ezra Caswell

Description:

The drawings and specification for this patent are not available online; the image shown is taken from the August 1875 issue of "The Canadian Patent Office Record". The image makes clear that this Canadian patent is equivalent to U.S. patent 170,344.