US PATENT SUBCLASS 178 / 108
.~ Horizontal swing

Current as of: June, 1999
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178 /   HD   TELEGRAPHY

101  DF  KEYS {9}
108.~ Horizontal swing

DEFINITION

Classification: 178/108

(under subclass 101) Telegraph keys in which the key lever is mounted to swing horizontally.

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82, for automatic vibrators having horizontal swing.