(under the class definition) Apparatus comprising a scraper supported intermediate the ends of an unusually long longitudinally extending supporting structure with separate ground support means at each end, the unusually long supporting structure tending to smooth out undulations in the earth to produce a finished, generally planar surface.
(1) Note. For the meaning of "scraper" see the definition of subclass 781.
(2) Note. The unusually long supporting structure must have one portion thereof extending a substantial distance from the scraper to the front support means and another portion thereof extending a substantial distance to the rear support means to present an elongated supporting base for materially reducing the effect of undulations in the soil on the scraper.
(3) Note. Patents are classified under this definition on a disclosure basis if the claim has any reference to the supporting structure. The supporting structure may be disclosed as supported at one or both ends by a separate vehicle or vehicles.
