US PATENT SUBCLASS 431 / 112
.~.~ Extending within mantle

Current as of: June, 1999
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431 /   HD   COMBUSTION

100  DF  INCANDESCENT MANTLE {7}
111  DF  .~ Supporting or protecting means external of mantle {2}
112.~.~ Extending within mantle

DEFINITION

Classification: 431/112

(under subclass 111) Apparatus in which the support, connector or protector is surrounded by the mantle.