Road contact for traffic analyzers
United States Patent 2276837

Inventors:
Greentree, Charles D.
Mead Jr., Milton S.
Publication Date:
03/17/1942
View Patent Images:
Download PDF 2276837 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
GEN ELECTRIC
Primary Class:
340/943
Other Classes:
235/99A
International Classes:
G08G1/01