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US Patent: 1,497,501
Release stop or support for hoist cages
Patentee: Leo D. Graboski (exact or similar names) - Duryea, PA USPTO Classifications: 187/356, 187/379 Tool Categories: specialty machines : elevators and lifts Assignees: Vulcan Iron Works (Wilkes-Barre) - Wilkes-Barre, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jun. 23, 1921 Granted: Jun. 10, 1924 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Vulcan Iron Works (Wilkes-Barre)

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