US PATENT SUBCLASS 258 / 7
.~.~ Spring

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

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

DEFINITION

Classification: 258/7

Automatically actuated projectors comprising a spring for imparting movement to the load.