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CA Patent: CA-10,367
Sash and door clamps
Patentee: Robert L. Greenlee (exact or similar names) - Chicago, IL USPTO Classifications: Tool Categories: work holding : clamps Assignees: William Abercrombie - Hamilton, ON Canada Manufacturer: Greenlee Brothers & Co. - Rockford, IL Wm. Abercrombie - Hamilton, ON Canada Witnesses: Unknown	Patent Dates: Granted: Aug. 18, 1879 Patent Pictures: CIPO Data Espacenet patent Report data errors or omissions to steward Carl Matthews "Vintage Machinery" entry for Greenlee Brothers & Co. "Vintage Machinery" entry for Wm. Abercrombie
Description: Five-year extension to patent CA-3,767, which is the Canadian equivalent to U.S. patent 143,236.

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