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US Patent: 2,948,363
Telescoping elevators
Patentee: Fred P. Hopfeld (exact or similar names) - Chicago, IL USPTO Classifications: 182/141, 182/17, 182/69.4, 52/118 Tool Categories: transportation Assignees: Grand Specialties Co. - Chicago, IL Manufacturer: Grand Specialties Co. - Chicago, IL Witnesses: Unknown	Patent Dates: Applied: Aug. 11, 1955 Granted: Aug. 09, 1960 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Grand Specialties Co.

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