US Patent Class 191
ELECTRICITY: TRANSMISSION TO VEHICLES-- Main Headings



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Current as of: June, 1999
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CLASS NOTES
1 R  DF  MISCELLANEOUS {1}
2  DF  SYSTEMS OF DISTRIBUTION {4}
9  DF  DRAWBRIDGE AND TRANSFER TABLE
10  DF  MAGNETIC INDUCTION
11  DF  VEHICLE IN SERIES
12 R  DF  FLEXIBLE EXTENSIONS {3}
13  DF  PLATE CONDUCTOR
14  DF  SECTIONAL CONDUCTOR {2}
22 R  DF  CONDUCTORS {5}
45 R  DF  COLLECTORS {8}