US PATENT SUBCLASS 148 / 661
.~.~.~.~ Strip, sheet, or plate


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

Internet Version by PATENTEC © 1999      Terms of Use



148 /   HD   METAL TREATMENT

95  DF  PROCESS OF MODIFYING OR MAINTAINING INTERNAL PHYSICAL STRUCTURE (I.E., MICROSTRUCTURE) OR CHEMICAL PROPERTIES OF METAL, PROCESS OF REACTIVE COATING OF METAL AND PROCESS OF CHEMICAL-HEAT REMOVING (E.G., FLAME-CUTTING, ETC.) OR BURNING OF METAL {17}
559  DF  .~ Heating or cooling of solid metal {22}
579  DF  .~.~ Iron(Fe) or iron base alloy {24}
660  DF  .~.~.~ Including cooling (e.g., quenching, etc.) {3}
661.~.~.~.~ Strip, sheet, or plate


DEFINITION

Classification: 148/661

Strip, sheet, or plate:

(under subclass 660) Process wherein the metal workpiece is in the form of a strip, sheet, or plate.