MARC全文
02h0005970 20090325110004.0 s1989 dcua frb |000|||eng | NGL a733 Rhoades, C. A. (Charles A.) Development and testing of a pneumatic scraper blade for conveyor belt cleaning / by C.A. Rhoades, S.G. Grannes, and T.L. Hebble. Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1989. 12 p. : ill. ; 27 cm. Information circular ; 9234 Includes bibliographical references. Conveyor belts ; Blades Cleaning. ; Testing. aGrannes, S. G. ; q(Steven G.) ; aHebble, T. L. ; q(Terry L.) Information circular (United States. Bureau of Mines) ; 9234. aCN bNGL NGL P 720.66 In3 v9234 ; h1 fqyl0803