US PATENT SUBCLASS 236 / *
.~ Thermostatic

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

2  DF  INCUBATOR TYPE OF HEATER {2}
*.~ Thermostatic {2}
4  DF  .~.~> Expanding fluid
5  DF  .~.~> Expanding solid