US PATENT SUBCLASS 258 / 6
.~ Automatically actuated

Current as of: June, 1999
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258 /   HD   RAILWAY MAIL DELIVERY

5  DF  PROJECTORS {1}
6.~ Automatically actuated {1}
7  DF  .~.~> Spring

DEFINITION

Classification: 258/6

Projectors actuated automatically by movement of the vehicle along the track.