US PATENT SUBCLASS 379 / 68
.~ Dynamic audio signal recording or reproduction

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

Internet Version by PATENTEC © 1999      Terms of Use


379 /   HD   TELEPHONIC COMMUNICATIONS

67.1  DF  AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS {13}
68.~ Dynamic audio signal recording or reproduction {4}
69  DF  .~.~> Call originating
70  DF  .~.~> Call intercept or answering {7}
85  DF  .~.~> Recording of telephone signal during normal operation {1}
87  DF  .~.~> Reproduced signal distributed over telephone line

DEFINITION

Classification: 379/68

Dynamic audio signal recording or reproduction:

(under subclass 67.1) Subject matter which utilizes relative motion with respect to a record medium to perform the audio message storage or retrieval.

SEE OR SEARCH CLASS

360, Dynamic Magnetic Information Storage or Retrieval, appropriate subclasses for a magnetic tape recorder.

369, Dynamic Information Storage or Retrieval, appropriate subclasses for a phonograph.