US PATENT SUBCLASS 313 / 445
.~.~ Canted electrode (i.e., ion trap)

Current as of: June, 1999
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313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

364  DF  CATHODE RAY TUBE {11}
441  DF  .~ Ray generating or control {6}
445.~.~ Canted electrode (i.e., ion trap)

DEFINITION

Classification: 313/445

(under subclass 441) Subject matter including an electrode or electrode surface positioned at an acute angle with respect to a plane perpendicular to the electron beam axis for the purpose of deflecting ions off axis.