US PATENT SUBCLASS 217 / 101
.~.~.~.~ Safety

Current as of: June, 1999
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217 /   HD   WOODEN RECEPTACLES

72  DF  BARRELS {11}
98  DF  .~ Bungs {5}
99  DF  .~.~ Valved {1}
100  DF  .~.~.~ Automatic {5}
101.~.~.~.~ Safety

DEFINITION

Classification: 217/101

(under subclass 100) Subject matter comprising valves for relieving excessive pressure within the barrel.

SEE OR SEARCH CLASS

137, Fluid Handling,

455+, for pressure relieving valves of general utility.

435, Chemistry: Molecular Biology and Microbiology,

286.6+, for safety devices which maintain a uniform pressure in a system of connected barrels.