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US Patent: 1,778,576
Clamping element for vises and similar articles
Patentee: Percy H. D. Walker (exact or similar names) - Meriden, CT USPTO Classifications: 269/245, 269/82, 411/521, 81/124.3 Tool Categories: work holding : vises : bench vises Assignees: Charles Parker Co. - Meriden, CT Manufacturer: Charles Parker Co. - Meriden, CT Witnesses: Unknown	Patent Dates: Applied: Dec. 13, 1929 Granted: Oct. 14, 1930 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Carl Matthews "Vintage Machinery" entry for Charles Parker Co.
Description: This patent date was seen on a number 436 vise from Chas. Parker Co.

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