US PATENT SUBCLASS 219 / 52
.~.~ Methods


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

Internet Version by PATENTEC © 1999      Terms of Use



219 /   HD   ELECTRIC HEATING

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
51  DF  .~ Chain {1}
52.~.~ Methods


DEFINITION

Classification: 219/52

(under subclass 51) Methods.