Results 121 to 130 of about 565,672 (242)
Description of the Electric Rock-Drilling Machinery at the Carlin How Ironstone Mines in Cleveland [PDF]
, 1893 A L STEAVENSON, Lowthian Bell
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ELECTRIC MINING-MACHINERY, WITH SPECIAL REFERENCE TO THE APPLICATION OF ELECTRICITY TO COAL-CUTTING, PUMPING, AND ROCK-DRILLING. (INCLUDES PLATES AND APPENDIX). [PDF]
, 1891 L.B. Atkinson, C W ATKINSON
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Drilling for oil and natural gas in the vicinity of Philadelphia [PDF]
, 1894 Oscar C.S. Carter
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Study of sample drilling techniques for Mars sample return missions [PDF]
To demonstrate the feasibility of acquiring various surface samples for a Mars sample return mission the following tasks were performed: (1) design of a Mars rover-mounted drill system capable of acquiring crystalline rock cores; prediction of ...
Harris, P. T., Mitchell, D. C.
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Dissipation of the temperature effect of drilling a well in Arctic Alaska
, 1958 Arthur H. Lachenbruch
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The Column v. the Line as the Formation for Moving Reserves in the Infantry Attack (N.B.—Written before the issue of the new Infantry Drill.) [PDF]
, 1889 H. J. Craufurd
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