Title:
Grade-crossing safety apparatus
United States Patent 1555386
Inventors:
Raymond, Schillinger
Publication Date:
09/29/1925
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Export Citation:
Assignee:
George, Schillinger W.
Primary Class:
Other Classes:
49/33
International Classes:
B61L29/02; E01F13/12; B61L29/00; E01F13/00