US PATENT SUBCLASS 73 / 731
.~.~ Sack

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

700  DF  FLUID PRESSURE GAUGE {20}
715  DF  .~ Diaphragm {6}
731.~.~ Sack

DEFINITION

Classification: 73/731

Sack:

(under subclass 715) Subject matter wherein the pressure responsive element is in the form of a flexible container.

SEE OR SEARCH CLASS

92, Expansible Chamber Devices,

91+, for a flexible sack-type expansible chamber device.