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US Patent: 472,063
Automatic railway-switch
Patentees:
James Clark, Jr. - Louisville, KY
George Seymour Maxwell - Louisville, KY

USPTO Classifications:
246/356, 246/366

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John M. Ramsay
George H. Webb

Patent Dates:
Applied: Aug. 13, 1891
Granted: Apr. 05, 1892

Patent Pictures:
USPTO pdf tiff
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