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US Patent: 1,393,073
Drop Hammer
Patentee: Louis Garfield Bayrer (exact or similar names) - Hartford, Hartford County, CT USPTO Classifications: 72/439 Tool Categories: metalworking machines : forging machines : drop hammers Assignees: Billings & Spencer Co. - Hartford, Hartford County, CT Manufacturer: Not known to have been produced Witnesses: none listed	Patent Dates: Applied: Jul. 26, 1920 Granted: Oct. 11, 1921 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Billings & Spencer Co.
Description: H. E. Hart - patent attorney

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