US PATENT SUBCLASS 427 / 129
.~.~ With pretreatment of base

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

127  DF  MAGNETIC BASE OR COATING {1}
128  DF  .~ Magnetic coating {4}
129.~.~ With pretreatment of base

DEFINITION

Classification: 427/129

(under subclass 128) Processes which include the step of physically or chemically modifying the base prior to the coating step.