US PATENT SUBCLASS 181 / 141
COMBINED

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

Internet Version by PATENTEC © 1999      Terms of Use


181 /   HD   ACOUSTICS

141COMBINED

DEFINITION

Classification: 181/141

(under the class definition) Subject matter to which has been added a subcombination or assembly which is recognized as the subject matter of some other class.