US PATENT SUBCLASS 34 / 251
.~.~ Having suction means

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

245  DF  MATERIAL TREATED BY ELECTROMAGNETIC ENERGY {8}
250  DF  .~ Electrostatic field {4}
251.~.~ Having suction means

DEFINITION

Classification: 34/251

Having suction means:

(under subclass 250) Subject matter including means to create a reduced pressure around the material being treated.