US PATENT SUBCLASS 48 / 108
.~.~ Water

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

Internet Version by PATENTEC © 1999      Terms of Use


48 /   HD   GAS: HEATING AND ILLUMINATING

61  DF  GENERATORS {4}
89  DF  .~ Retort {12}
108.~.~ Water {2}
109  DF  .~.~.~> Carburetor
110  DF  .~.~.~> Oil gas

DEFINITION

Classification: 48/108

Retorts constructed to contain incandescent coal and into which steam is injected.