US PATENT SUBCLASS 172 / 787
.~.~ Spaced and in same path


Current as of: June, 1999
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172 /   HD   EARTH WORKING

781  DF  SCRAPER BETWEEN FRONT AND REAR GROUND SUPPORTS OF VEHICLE {12}
786  DF  .~ Plural scrapers {1}
787.~.~ Spaced and in same path


DEFINITION

Classification: 172/787

(under subclass 786) Apparatus in which the plural scrapers work the earth in the same or overlapping paths and are spaced from each other.

(1) Note. Scrapers which are adjustable relative to each other are considered to come within the definition if they meet the requirements of the definition in some positions of adjustment even if in other positions they do not meet the requirements.

(2) Note. Scrapers which are connected to each other in the earth-contacting portion so as to function as a unit (which may be composed of adjustable sections pivoting about the point of connection) are not considered to come within the definition even if the scrapers overlap and are spaced from each other. Such scrapers may be classified in subclass 786.