US PATENT SUBCLASS 148 / 597
.~.~.~.~ Nine percent or more chromium(Cr) (e.g., stainless steel, etc.)

Current as of: June, 1999
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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}
595  DF  .~.~.~ Wire, rod, or filament {4}
597.~.~.~.~ Nine percent or more chromium(Cr) (e.g., stainless steel, etc.)

DEFINITION

Classification: 148/597

Nine percent or more chromium (Cr) (e.g., stainless steel, etc.):

(under subclass 595) Process wherein the wire, rod, or filament is an iron alloy containing nine percent or more chromium (Cr) (e.g., stainless steel, etc.).