Process of and apparatus for breaking up the components of petroleum and the like into more volatile products von WELLS WILLET C, WELLS FRANK E

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Process of filtering vapors von WELLS WILLET C, WELLS FRANK E

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Process of refining petroleum, shale oil, coal tar, and the like, commonly classed as hydrocarbons von WELLS WILLET C, WELLS FRANK E

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Process of obtaining oils, pitch, and the like from shales, coal, wood, and other materials von WELLS WILLET C, WELLS FRANK E

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Process of expressing wax from petroleum distillates von WELLS WILLET C, WELLS FRANK E

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Apparatus for expressing wax from petroleum-distillates von WELLS WILLET C, WELLS FRANK E

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PROCESS OF REFINING, FRACTIONATING, AND REDUCING OILS von WILLET C. WELLS, FRANK E. WELLS

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MEANS FOR INCREASING THE EFFICIENCY OF FUEL FOR MOTIVE POWER von WILLET C. WELLS, FRANK E. WELLS

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PROCESS OF REFINING, FRACTIONATING, AND REDUCING OILS von WILLET C. WELLS, FRANK E. WELLS

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CORRESPONDENCE. HIGH SPEED ON RAILWAY CURVES AND A PRACTICAL METHOD FOR THE IMPROVEMENT OF EXISTING RAILWAY CURVES von APPLEYARD, R, EUSTICE, J, FITZGERALD, M, MALLOCK, A, MORRIS, E H, READ, R J G, SHAND, A C, STEWART, P C, SWEETMAN, W, TREACHER, E, WARNER, J S, WELLS, L F, WHITLEY, H M, WILLET, A W, DE RUDDER, E, SIEGLER, E

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Procédé de distillation fractionnée des pétroles von WELLS WILLET CASEY, WELLS FRANK ELWOOD

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