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The history of three-color photography (1925)

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612 History of Three-Color Photography posed to mount the three positives with filters and pass them successively in front of an opening in a wheel. Cf. W. Bishop, Brit. J. Phot. 1892, 39, 362. 5. E.P. 23,863, 1898; abst. Brit. J. Phot. 1900, 47, Supp. 94; 1907, 54, Col. Phot. Supp. 1, 64; U.S.P. 676,532; D.R.P. 128,907; Silhermann, 2, 343. 6. E.P. 7,035, 1900; abst. Brit. J. Phot. 1907, 54, Col. Phot. Supp. 1, 64. 7. U.S.P. 1,204,771; E.P. 16,201, 1913; P.P. 459,960. 8. U.S.P. 727,948, 1903. 9. U.S.P. 1,143,608; F.P. 472,002, 1914. 10. F.P. 364,369, 1906. 11. Addit. to above 6,193, 1906. 12. F.P. 375,110, 1907. 13. F.P. 381,494, 1906. 14. E.P. 453, 1908; Brit. J. Phot. 1909, 56, 126. Patented also by H. R. Evans, F.P. 478,847, 1915, and R. Nuber, D.R.P. 338,182, 1920. 15. E.P. 11,791, 1908; Brit. J. Phot. 1909, 56, 202; U.S.P. 937,367; Austr.P. 41,127; Phot. Ind. 1910, 561; Jahrbuch, 1911, 25, 337. 16. E.P. 249, 1902. 17. E.P. 5,945, 1909; Brit. J. Phot. 1910, 57, 407. 18. E.P. 9,912, 1909; Brit. J. Phot. 1910, 57, 407. 19. D.R.P. 239,382, 1910; Phot. Ind. 1911, 1727; Jahrbuch, 1912, 26, 241; F.P. 421,053; Austr.P. 53,257. 20. E.P. 24,161, 1912; Brit. J. Phot. 1914, 61, 182. In E.P. 28,365, 1912, stereoscopic pictures were to be shown. 21. F.P. 456,344; Belg.P. 255,340; E.P. 8.063, 1913; Brit. J. Phot. 1914, 61, 502; D.R.P. 281,362; U.S.P. 1,130,221. In D.R.P. 285,558, 1913 the inventor proposed to equalize exposures by partly employing the color values of one picture in the next. In F.P. 456,343 ; E.P. 8,062, 1913 he used oscillating color reflectors for successive pictures. 22. E.P. 26,292, 1912; Brit. J. Phot. 1913, 60, 730. 23. E.P. 21,261, 1911; Brit. J. Phot. 1912, 59, 541; F.P. 448,488; U.S.P. 1,184,226; Jahrbuch, 1915, 29, 158. 24. E.P. 2,704, 1914; Brit. J. Phot. 1915, 62, 155. 25. E.P. 19,098, 1912. 26. E.P. 23,386, 1911; Brit. J. Phot. 1912, 59, 202; abst. J. S. C. I. 1912, 31, 258; U.S.P. 1,184,226; D.R.P. 270,551; Phot. Ind. 1914, 280; Jahrbuch, 1912, 26, 240. 27. E.P. 23,499, 1911; abst. Brit. J. Phot. 1912, 59, 885. In E.P. 7,477, 1912; Brit. J. Phot. 1913, 60, 29 a machine was patented for applying the color film to the positives. 28. E.P. 23,221, 1911; abst. Brit. J. Phot. 1912, 59, 835. 29. U.S.P. 1,293,040, 1919. 30. E.P. 23,499, 1911; Brit. J. Phot. 1912, 59, 885. 31. E.P. 14,133, 1912; Brit. J. Phot. 1913, 60, 558; D.G.M. 504,520. 32. F.P. 445,601, 1911. 33. U.S.P„ 1,145,410, 1915. Cf. Pathe, F.P. 437,445, 1920. 34. U.S.P. 1.287,594, 1918; E.P. 131,478; Brit. J. Phot. 1920, 67, 288; Col. Phot. Supp. 13, 18; Jahrbuch. 1915, 29, 159. 35. E.P. 117,864, 1918; Brit. J. Phot. 1919, 66, 16; Col. Phot. Supp. 13, 3; abst. J. S. C. I. 1918, 37, 607a; U.S.P. 1,325,279; F.P. 487,306; Jahrbuch, 1915, 29, 155. 36. E.P. 23,497, 1911; abst. Brit. J. Phot. 1912, 58, 1000. Cf. W. H. Kunz, U.S.P. 1,175,961, 1916 for the same idea. Also A. Markus, D.G.M. 545,977. 37. E.P. 1,489, 1912; Brit. J. Phot. 1913, 60, 500. 38. E.P. 26,976, 1912; Brit. J. Phot. 1913, 60, 500; D.R.P. 274,710; U.S.P. 1,203.681. 39. U.S.P. 1,094,147; F.P. 471,082; E.P. 9,229, 1914. In U.S.P. 1,243,273 an endless linked chain carrying the filters is patented. Cf. A. G. Donnelly, U.S.P. 1,098,370. 40. U.S.j". 1,094,148; E.P. 9,230, 1914. 41. U.S.P. 1,115,538; E.P. 9,765, 1914; F.P. 471,290. Cf. Hochstetter and Pryce, U.S.P. 1,255,421. 42. U.S.P. 1,137,320; E.P. 9,764, 1914; Brit. J. Phot. 1915, 60, 243; F.P. 471,289; 471,083 granted to P. M. Pierson and Hochstetter. 43. U.S.P. 1,301,265, 1919.