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US Patent: 220,144
Improvement in hoisting-pulley apparatus
Patentee: Edwin Harrington (exact or similar names) - Philadelphia, PA USPTO Classifications: 254/295, 74/414 Tool Categories: material handling : hoists, winches, come-alongs Assignees: Edwin Harrington & Son - Philadelphia, PA Manufacturer: Edwin Harrington & Son - Philadelphia, PA Witnesses: A. J. Anderson H. Kirk Smith	Patent Dates: Applied: May 02, 1879 Granted: Sep. 30, 1879 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Edwin Harrington, Son & Co., Inc.

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