US PATENT SUBCLASS 178 / 89
.~ Code recorders

Current as of: June, 1999
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178 /   HD   TELEGRAPHY

118  DF  RECEIVERS {4}
89.~ Code recorders {8}
90  DF  .~.~> Photographic
91  DF  .~.~> Siphon
92  DF  .~.~> Indenting or perforating
93  DF  .~.~> Polarized
94  DF  .~.~> Pyrographic
95  DF  .~.~> Stop mechanisms
96  DF  .~.~> Inking devices
97  DF  .~.~> Double-tape movement

DEFINITION

Classification: 178/89

(under subclass 88) Electromagnetic instruments for making a visible record of dots and dashes or other code messages on a suitable recording surface, usually a paper strip or tape.

SEE OR SEARCH THIS CLASS, SUBCLASS:

17, for recorders adapted to automatic systems.

25, for page printing systems.

36+, for printing recorders.

48, for receivers and recorders peculiar to harmonic or tone telegraphy. 62, for recorders operated by chemical action.

SEE OR SEARCH CLASS

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

220+, for electromagnets with armatures.

346, Recorders, appropriate subclasses.

361, Electricity: Electrical Systems and Devices,

139+, and subclass 211 for miscellaneous relay circuits.