US PATENT SUBCLASS 106 / 771
.~.~.~.~ Preprocessing or processing of raw material before firing (e.g., preheating, etc.)

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

Internet Version by PATENTEC © 1999      Terms of Use


106 /   HD   COMPOSITIONS: COATING OR PLASTIC

*  DD  COATING OR PLASTIC COMPOSITIONS {40}
638  DF  .~ Inorganic settable ingredient containing {30}
713  DF  .~.~ Portland type cement {13}
739  DF  .~.~.~ Portland type cement per se (e.g., clinker preparation, etc.) {26}
771.~.~.~.~ Preprocessing or processing of raw material before firing (e.g., preheating, etc.)

DEFINITION

Classification: 106/771

Preprocessing or processing of raw material before firing (e.g., preheating, etc.):

(under subclass 739) Subject matter involving preprocessing or processing of raw material before firing, e.g., preheating, etc.