US PATENT SUBCLASS 126 / 307 R
STOVEPIPES

Current as of: June, 1999
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126 /   HD   STOVES AND FURNACES

307 RSTOVEPIPES {3}
312  DF  .~> Ventilation
313  DF  .~> Air-moistening attachments
307 A  DF  .~> Back draft diverter

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 126/307

(under the class definition) Devices comprising miscellaneous smoke-flues, designed to convey smoke and waste gases from the fire-pot.

SEE OR SEARCH CLASS

138, Pipes and Tubular Conduits, appropriate subclasses for pipe and conduit structures generally.