US Patent Class 104
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Current as of: June, 1999
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CLASS NOTES
2  DF  TRACK LAYERS {11}
18  DF  MOVING TRAIN {2}
22  DF  BALLOON
23.1  DF  FLUID SUPPORTED CAR OR SIMULATED AERIAL VEHICLE {1}
24  DF  SAILING DEVICES
25  DF  ENDLESS TRAIN
26.1  DF  CAR YARD {1}
27  DF  TERMINALS AND STATIONS {3}
32.1  DF  TRUCK CHANGER {1}
34  DF  VEHICLE BATTERY REPLACER
35  DF  TURNTABLES {5}
48  DF  TRANSFER TABLES {2}
51  DF  LOCOMOTIVE SHED FIXTURES {1}
53  DF  AMUSEMENT {25}
87  DF  CABLE AND RIGID COMBINED
88.01  DF  SELECTIVE DELIVERY {1}
89  DF  SUSPENDED {6}
96  DF  TROLLEY TRANSFER {9}
106  DF  TROLLEY RAILS {3}
112  DF  CABLE RAILS {5}
118  DF  MONORAIL {3}
122  DF  DROP PICK UP
123  DF  WAY SUSPENSION
124  DF  ELEVATED STRUCTURE
125  DF  POSTS AND TOWERS
126  DF  PORTABLE ELEVATED
127  DF  ELEVATORS {2}
130.01  DF  SWITCHES {8}
133  DF  DROPPINGS CATCHER
134  DF  SLEDWAYS {2}
137  DF  TRAVELING TRACK
138.1  DF  TUBULAR WAY {1}
139  DF  TRUCK IN CONDUIT
140  DF  SLOTTED CONDUIT {4}
281  DF  MAGNETICALLY SUSPENDED CAR {5}
287  DF  CAR-CARRIED PROPULSION SYSTEM {3}
164  DF  TILTING TRACK
165  DF  TRACTION {8}
241  DF  SEAT-GUARD CONTROL
242  DF  DERAILMENT GUARDS {5}
249  DF  CAR STOPS {7}
261  DF  CAR-ATTACHED DERAILER
262  DF  CAR REPLACER {7}
275  DF  HOSE BRIDGES {2}
279  DF  TRACK CLEARERS {1}
306  DF  WITH RUNNING GEAR
307  DF  MISCELLANEOUS
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DIGEST
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DIG 1  DF  Toy railroad