US PATENT SUBCLASS 220 / 261
.~.~ Opening means comprises explosive charge

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
260  DF  .~ With closure opening arrangements for means (e.g., opening devices) {5}
261.~.~ Opening means comprises explosive charge

DEFINITION

Classification: 220/261

(under subclass 200) Device wherein the opening means consists of or is assisted by an explosive charge.