US PATENT SUBCLASS 534 / 10
.~ RADIOACTIVE METAL CONTAINING (At. No. 43, 61 or 84+; or radioactive isotope of another metal)

Current as of: June, 1999
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534 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) {8}
10.~ RADIOACTIVE METAL CONTAINING (At. No. 43, 61 or 84+; or radioactive isotope of another metal) {2}
11  DF  .~.~> Actinide series metal (At. No. 89+) {1}
14  DF  .~.~> Technetium containing (At. No. 43; Tc)

DEFINITION

Classification: 534/10

(under subclass 1) Compound under Class 532, ..., which contains a metal which exhibits spontaneous nuclear disintegration with emission of radioactive particles, either as (1) the naturally unstable metal which has as atomic number of (43, 61 or at least 84), or (2) a metal which has been treated to render an isotope thereof radioactive.