US PATENT SUBCLASS 122 / 94.1
.~.~.~.~ Water tube type


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}
51  DF  .~ Horizontal {22}
90  DF  .~.~ Water firebox {8}
93  DF  .~.~.~ Offset {1}
94.1.~.~.~.~ Water tube type


DEFINITION

Classification: 122/94.1

Water tube type:

(under subclass 93) Devices composed of water tubes in whole or in part.