US PATENT SUBCLASS 48 / 214 A
.~.~ Catalytic processes


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

197 R  DF  PROCESSES {15}
214 R  DF  .~ Oil and steam injected {2}
214 A.~.~ Catalytic processes

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 48/214

Processes wherein oil and steam or water are injected into a highly heated retort.