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US Patent: 1,089,704
Rail-fastening
Patentee:
Isaiah E. Hindman - Crafton, PA

USPTO Classifications:
238/125, 238/275

Tool Categories:
transportation machines : railroads and railways : track and switches

Assignees:
Duff Manufacturing Co. - Pittsburgh, PA

Manufacturer:
Duff Manufacturing Co. - Pittsburgh, PA

Witnesses:
George H. Parmelee
H. M. Corwin

Patent Dates:
Applied: Nov. 26, 1913
Granted: Mar. 10, 1914

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Duff Manufacturing Co.

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