US PATENT SUBCLASS 430 / 959
.~ Blocked developers

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

955  DF  PRECURSOR COMPOUND {5}
959.~ Blocked developers

DEFINITION

Classification: 430/959

Blocked developers:

Art collection involving the use of precursor functioning to block developing.