US PATENT SUBCLASS 30 / 172
.~.~ Plural blade
Current as of: June, 1999
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DEFINITION
Classification: 30/172
(under subclass 169) Scrapers which are provided with more than one blade. Usually all of the blades are operative at the same time.
(1) Note. See this class, subclasses 299+ and the notes thereunder, for other plural blade cutting tools.
(2) Note. Single scraper blades having plural edges are not here, but are in subclass 169 or other appropriate indented subclasses.