US PATENT SUBCLASS 435 / FOR 178
.~ Microinjection (935/53)

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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 178.~ Microinjection (935/53)