Title:
Highway crossing
Document Type and Number:
United States Patent 1689161
Inventors:
Skultin, Charles A.
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Publication Date:
10/23/1928
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Referenced by:
Export Citation:
Assignee:
Skultin, Charles A.
Primary Class:
Other Classes:
14/78, 104/124
International Classes:
E01C1/04; E01C1/00