US PATENT SUBCLASS 438 / 945
.~ Special (e.g., metal, etc.)

Current as of: June, 1999
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438 /   HD   SEMICONDUCTOR DEVICE MANUFACTURING: PROCESS

942  DF  MASKING {6}
945.~ Special (e.g., metal, etc.)

DEFINITION

Classification: 438/945

Special (e.g., metal, etc.):

Art collection under 942 involving the use of a nonconventional mask.