US PATENT SUBCLASS 148 / 604
.~.~.~ Of stacked plural workpieces

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}
604.~.~.~ Of stacked plural workpieces

DEFINITION

Classification: 148/604

Of stacked plural workpieces:

(under subclass 579) Process wherein plural workpieces are vertically stacked, one above the other.

(1) Note. Side-by-side or other arrangements for treating plural workpieces are not provided in this subclass.

(2) Note. The presence of inserts or spacers between the plural workpieces for facilitating the treatment is acceptable for this subclass.