US PATENT SUBCLASS 104 / 58
.~ Moving-wave track

Current as of: June, 1999
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104 /   HD   RAILWAYS

53  DF  AMUSEMENT {25}
58.~ Moving-wave track

DEFINITION

Classification: 104/58

(under subclass 53) Apparatus comprising a track made of flexible sheet metal in which waves or undulations are produced to cause the movement of the cars located on the track.