US PATENT SUBCLASS 65 / 115
.~.~.~ Differential or localized

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

Internet Version by PATENTEC © 1999      Terms of Use


65 /   HD   GLASS MANUFACTURING

17.1  DF  PROCESSES {32}
111  DF  .~ Glass preform treating {4}
114  DF  .~.~ Tempering {2}
115.~.~.~ Differential or localized

DEFINITION

Classification: 65/115

(under subclass 114) Processes including a step of tempering an isolated portion of an article or preform or distinct steps of tempering separate portions thereof, usually by steps unequal or different degrees of tempering restricted portions even though an end product of uniform temper is produced.