US PATENT SUBCLASS 109 / 63
.~.~.~ With entrapping prevention means

Current as of: June, 1999
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109 /   HD   SAFES, BANK PROTECTION, OR A RELATED DEVICE

58  DF  WALL AND PANEL STRUCTURES, CLOSURES AND CLOSURE ADJUNCTS {5}
59 R  DF  .~ With closure fastening means {5}
62  DF  .~.~ Pressure mechanism {1}
63.~.~.~ With entrapping prevention means

DEFINITION

Classification: 109/63

(under subclass 62) Devices combined with means to prevent the entrapping of a person within the safe or vault by an unauthorized person.