US PATENT SUBCLASS 435 / FOR 183
.~.~.~ Phage, e.g., phage lambda, etc. (935/58)


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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

FOR 177  DD  METHODS OF INTRODUCING A GENE INTO A HOST CELL, E.G., TRANSFORMATION OR TRANSFECTION, ETC. (935/52) {3}
FOR 180  DD  .~ Using vector, e.g., plasmid, etc. (935/55) {2}
FOR 182  DD  .~.~ Virus (935/57) {1}
FOR 183.~.~.~ Phage, e.g., phage lambda, etc. (935/58)