US PATENT SUBCLASS 438 / FOR 438
FORMING HOLLOW BODIES AND ENCLOSED CAVITIES (437/927)
Current as of:
June, 1999
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438 /
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SEMICONDUCTOR DEVICE MANUFACTURING: PROCESS
FOR 438
FORMING HOLLOW BODIES AND ENCLOSED CAVITIES (437/927)
DEFINITION
Classification: 438/FOR.438
FORMING HOLLOW BODIES AND ENCLOSED CAVITIES:
Foreign art collection involving use of hollow structures and cavities having material surrounding the same.
