Lightweight fiberglass feed leg for hand-held pneumatic percussion rock drills /

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Bibliographic Details
Main Author: Spencer, Ellsworth R.
Format: Book
Language:English
Published: Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1985.
Series:Information circular (United States. Bureau of Mines) ; 9047
Subjects:
Rock drills.
Boring > Equipment and supplies.
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082 0 |a 622 s 
100 1 0 |a Spencer, Ellsworth R. 
245 1 0 |a Lightweight fiberglass feed leg for hand-held pneumatic percussion rock drills /  |c by Ellsworth R. Spencer. 
260 0 |a Pittsburgh, Pa. :  |b U.S. Dept. of the Interior, Bureau of Mines,  |c 1985. 
300 |a 6 p. :  |b ill. ;  |c 28 cm. 
490 1 |a Information circular / United States Department of the Interior, Bureau of Mines ;  |v 9047 
650 0 |a Rock drills. 
650 0 |a Boring  |x Equipment and supplies. 
830 0 |a Information circular (United States. Bureau of Mines) ;  |v 9047 
942 |2 ddc 
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999 |c 28918  |d 28918 

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