US PATENT SUBCLASS 191 / 37
.~.~ Crossings
Current as of:
June, 1999
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191 /
HD
ELECTRICITY: TRANSMISSION TO VEHICLES
22 R
DF
CONDUCTORS
{5}
33 R
DF
.~ Trolley {9}
37
.~.~ Crossings
DEFINITION
Classification: 191/37
(under subclass 33) Structures at the intersection of a plurality of separate trolley conductors for guiding each conductor's collector across the intersection and preventing it from being diverted to another conductor.
SEE OR SEARCH CLASS
246, Railway Switches and Signals,
454, and indented subclasses.