US PATENT SUBCLASS 365 / 21
.~.~ Three phase signals

Current as of: June, 1999
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365 /   HD   STATIC INFORMATION STORAGE AND RETRIEVAL

1  DF  MAGNETIC BUBBLES {18}
19  DF  .~ Conductor propagation {2}
21.~.~ Three phase signals

DEFINITION

Classification: 365/21

Three phase signals:

(under subclass 19) Subject matter where a sequence of three conductors are energized by signals 120 out of phase.