US PATENT SUBCLASS 427 / 321
.~.~.~.~ Zinc or spelter coating (e.g., galvanizing, etc.)

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

299  DF  WITH PRETREATMENT OF THE BASE {7}
314  DF  .~ Heating or drying pretreatment {3}
318  DF  .~.~ Metal base {1}
319  DF  .~.~.~ Metal coating {2}
321.~.~.~.~ Zinc or spelter coating (e.g., galvanizing, etc.)

DEFINITION

Classification: 427/321

(under subclass 319) Processes wherein the coating contains zinc in elemental form.