Title:
Emergency road signal
United States Patent 2557859
US Patent References:
/0525082.html
- - 0525082
/0884105.html
- - 0884105
/0950867.html
- - 0950867
/1159056.html
- - 1159056
Trainman's kit
- - 1341559
/0525082.html
- - 0525082
/0884105.html
- - 0884105
/0950867.html
- - 0950867
/1159056.html
- - 1159056
Trainman's kit
- - 1341559
Inventors:
Harry, Bernstein
Publication Date:
06/19/1951
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Export Citation:
Assignee:
Harry, Bernstein
Primary Class:
Other Classes:
340/331, 340/473, 312/324, 248/346.030, 116/63P
International Classes:
B60Q7/00
US Patent References: