US PATENT SUBCLASS 236 / 70
.~.~.~ With beating element

Current as of: June, 1999
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236 /   HD   AUTOMATIC TEMPERATURE AND HUMIDITY REGULATION

67  DF  MOTORS {7}
*  DD  .~ Relay {2}
69  DF  .~.~ Pyrometer galvanometer {1}
70.~.~.~ With beating element

DEFINITION

Classification: 236/70

(under subclass 69) Devices in which an additional beating element is used to press the pointer of the galvanometer onto the controlling-contacts at regular predetermined intervals.