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US Patent: 3,566,546
Apparatus for grinding welded rail
Patentee:
Karl L. Lindmark - Rockford, IL

USPTO Classifications:
451/302, 451/304, 451/347

Tool Categories:
transportation machines : railroads and railways : track maintenance machinery

Assignees:
Chemetron Corp. - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 21, 1966
Granted: Mar. 02, 1971

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Fenlind Engineering Co.; Rock Mill, Inc.
Description:
The inventor had co-founded milling machine maker Fenlind, Inc. This patent implies that Lindmark had left Fenlind by 1966. See also patent 3,509,667, which was part of the original 1966 patent application.

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