US PATENT SUBCLASS 122 / 127
.~.~.~ Annular

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


122 /   HD   LIQUID HEATERS AND VAPORIZERS

44.1  DF  FIRE TUBE {11}
114  DF  .~ Vertical {13}
126  DF  .~.~ Water firebox {2}
127.~.~.~ Annular

DEFINITION

Classification: 122/127

(under subclass 126) Devices in the form of a ring or the like.

SEE OR SEARCH THIS CLASS, SUBCLASS:

29, for annular fireboxes with miscellaneous types of boilers.

184, for vertical flue boilers with an annular firebox.