US PATENT SUBCLASS 53 / 105
.~.~.~.~ Flexible diaphragm

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

79  DF  GAS FILLING AND/OR EVACUATING OF RECEPTACLE AND CLOSING {5}
86  DF  .~ Within enclosure {5}
97  DF  .~.~ With closure assembling means {4}
103  DF  .~.~.~ Atmospheric pressure {3}
105.~.~.~.~ Flexible diaphragm

DEFINITION

Classification: 53/105

(under subclass 103) Apparatus wherein the atmospheric pressure is exerted or applied through a yieldable batt or membrane.