US PATENT SUBCLASS 122 / 217
.~.~.~.~ Water firebox

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

209.1  DF  SECTIONAL {9}
*  DD  .~ Horizontal sections {1}
214  DF  .~.~ Superimposed {3}
215  DF  .~.~.~ Central connection {2}
217.~.~.~.~ Water firebox

DEFINITION

Classification: 122/217

(under subclass 215) Devices with a water firebox.