US PATENT SUBCLASS 156 / 244.14
.~.~.~.~.~ Differential fluid pressure used

Current as of: June, 1999
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156 /   HD   ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE

1  DF  METHODS {7}
60  DF  .~ Surface bonding and/or assembly therefor {93}
242  DF  .~.~ With lamina formation by molding or casting {4}
244.11  DF  .~.~.~ By extrusion {12}
244.13  DF  .~.~.~.~ Hollow article or lamina {2}
244.14.~.~.~.~.~ Differential fluid pressure used

DEFINITION

Classification: 156/244.14

Differential fluid pressure used:

(under subclass 244.13) Processes wherein a positive or negative pressure is applied through the medium of a liquid or gas.