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636 History of Three-Color Photography
29,112; 29,113, 1912; 9,865, 1913; 14,901; 29,512; 29,513; 29,514; 29,515, 1914 5,100, 1915; Brit. J. Phot. 1913, 60, 231, 232, 292, 501; 1914, 61, 109, 387; 1915 62, 499; 1916, 63, 587; C. A. 1914, 8, 1294; U.S.P. 1,158,587; 1,160,671; 1,169,096 1,173,898; 1,173,899; 1,169,097; 1,213,037; 1,213,038; 1,233,447; F.P. 450,731 451,015; 454.557; 456,776; addit. 17,842; 478,928; 478,986; 479,051; 459,122 459,123; 459,124; Belg.P. 253,302; 253,340; 253,455; 256,742; 256,743; Chem. Ztg. 1916, 40, 600; D.R.P. 288,548.
2. E.P. 6,061, 1913; Brit. J. Phot. 1914, 61, 329; U.S.P. 1,288,753; abst. J. S. C. I. 1919, 38, 158A.
3. U.S.P. 1,389,963; abst. Sci. Tech. Ind. Phot. 1922, 2, 52.
4. F.P. 538,026, 1921.
5. U.S.P. 1,398,286, 1921.
6. E.P. 6,292, 1914.
7. F.P. 412,498, 1910.
8. E.P. 29,586, 1910; Brit. J. Phot. 1911, 58, 656; Bioscope, 1911, 341; F.P. 424,895.
9. U.S.P. 1,313,587, 1919; Photo-Era, 1917, 36, 143; M. P. News, 1918. 1333. Cf. U.S.P. 1,253,796.
10. F.P. 401,180, 1908.
11. E.P. 2,584, 1908.
12. F.P. 431,967, 1910.
13. E.P. 24,455, 1914.
14. F.P. 532,396, 1920.
15. F.P. 514,076, 1920.
16. F.P. 534,807, 1921.
17. F.P. 540,328, 1921.
18. F.P. 562,217, 1922.
19. E.P. 4,288, 1915; Brit. J. Phot. 1915, 62, 548.
20. F.P. 524,841, 1920; abst. Sci. Tech. Ind. Phot. 1922, 2, 19.
Hardy and Hardy, E.P. 2,136, 1914 also used two films with reciprocating shutter.
21. E.P. 18,352, 1911; Brit. J. Phot. 1912, 59, 733; Can.P. 162,507; F.P. 433,663; U.S.P. 1,127,382; 1,167,643; Jahrbuch, 1913, 27, 145.
The Natural Color M. P. Co. and W. Oliver also proposed to use triple-width films (see p. 591).
22. E.P. 23,551, 1911; Brit. J. Phot. 1912, 59, 904; Jahrbuch, 1913, 27, 140.
23. "Outlines of Applied Optics," Philadelphia, 1912, 132.
24. Compt. rend. 1903, 137, 977, 1046.
25. E.P. 2,218, 1912; Brit. J. Phot. 1913, 59, 789; Jahrbuch. 1913, 27, 145, 345.
26. E.P. 14,142, 1913; Brit. J. Phot. 1914, 61, 290; F.P. 459.467; D.R.P. 229,007, granted to Gorsky and Maximowitsch ; Jahrbuch, 1911. 25, 693; Phot. Ind. 1911, 95. Cf. D.R.P. 310.348. For projector see F.P. 460,962; D.R.P. 310,349. 1913.
27. U.S.P. 1,328,352; E.P. 100,717; Brit. J. Phot. 1916, 63, 548; F.P. 481.792. For projectors for the same see E.P. 7,657; 7,658; 7,659. 1915; Brit. J. Phot.
loc. cit; F.P. 481,793; 481,794; 483,046; E.P. 14,722, 1915; ibid. 692; U.S.P. 1,284.587; 1,309,992.
28. U.S.P. 1.324,122, 1919. 476,146, 1914. 469,943, 1913. 151.383. 21,623, 1912.
188,329; Brit. J. Phot. 1924, 71, Col. Phot. Supp. 18, 27; F.P. 551,357; 557,750; abst. Sci. Tech. Ind. Phot. 1923, 3, 162; Brit. J. Almanac, 1925. 322; Can.P. 246,810; 246,809. Cf. Gleichmar, p. 328 for folded films. J. A. Ball, Can.P. 246.799. L. T. Troland and J. A. Ball, Can.P. 246,787.
34. E.P. 9,532, 1911; Brit. J. Phot. 1912, 59, 619; Jahrbuch. 1913, 27, 145. ibid. 1913, 60, 386.
29.
F.P.
30.
F.P.
31.
E.P
32.
E.P
33.
E.P
ibid.
ibid.
35.
E.P.
8,207, 1912; i
36.
F.P.
451,678
1912.
37.
E.P.
20,836,
1907.
38.
E.P.
23,688,
1910;
1910, 57
, 712.
39.
F.P.
467,609
1913.
40.
E.P.
9,912,
1909;
1909, 56
, 689.
Brit. J. Phot. 1911, 58, 859. Cf. E.P. 19,028, 1909; Brit. J. Phot. 1910. 57, 407. Cf. E.P. 17,309, 1908;