US PATENT SUBCLASS 156 / 580.1
.~.~ With sonic or ultrasonic means


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

349  DF  SURFACE BONDING MEANS AND/OR ASSEMBLY MEANS THEREFOR {34}
580  DF  .~ Presses or press platen structures, per se {3}
580.1.~.~ With sonic or ultrasonic means {1}
580.2  DF  .~.~.~> Specified structure of sonic or ultrasonic work contacting surface


DEFINITION

Classification: 156/580.1

(under subclass 580) Apparatus having means to treat the work by imparting rapid oscillations to the work at a frequency of 10 cycles per second or greater.