US PATENT SUBCLASS 367 / 23
.~.~.~ Controlled source signalling

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


367 /   HD   COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES

14  DF  SEISMIC PROSPECTING {4}
15  DF  .~ Offshore prospecting {4}
21  DF  .~.~ Signal processing {3}
23.~.~.~ Controlled source signalling

DEFINITION

Classification: 367/23

Controlled source signalling:

(under subclass 21) Subject matter wherein the acoustic wave source is controlled to emit a certain acoustic wave format.