COMMERCIAL EXTRACTION EQUIPMENT

[11] BRYANT GR, 1935, OIL GAS J, V33, P78

[12] BURTIS TA, 1946, T AM INST CHEM ENG, V42, P413

[13] CATTANEO G, 1930, Patent No. 1766281

[14] CHARLES E, 1933, Patent No. 569942

[15] COAHRAN JM, 1932, Patent No. 1845128

[16] COBB ML, 1949, PETROLEUM ENG, V21, pC47

[17] DAVIS HR, 1949, Patent No. 2468044

[18] DEBATAAFSCHE NV, 1934, Patent No. 414734

[19] DEBUCH CP, 1913, Patent No. 265074

[20] Dijck W.J.D, 1935, U.S. Patent, Patent No. [2, 011,186, 2011186]

[11] BRYANT GR, 1935, OIL GAS J, V33, P78

[12] BURTIS TA, 1946, T AM INST CHEM ENG, V42, P413

[13] CATTANEO G, 1930, Patent No. 1766281

[14] CHARLES E, 1933, Patent No. 569942

[15] COAHRAN JM, 1932, Patent No. 1845128

[16] COBB ML, 1949, PETROLEUM ENG, V21, pC47

[17] DAVIS HR, 1949, Patent No. 2468044

[18] DEBATAAFSCHE NV, 1934, Patent No. 414734

[19] DEBUCH CP, 1913, Patent No. 265074

[20] Dijck W.J.D, 1935, U.S. Patent, Patent No. [2, 011,186, 2011186]