Number | Date | Country | Kind |
---|---|---|---|
48-39203 | Apr 1973 | JA |
This is a continuation-in-part of application Ser. No. 458,935, filed Apr. 8, 1974, now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
1981426 | Muehler | Nov 1934 | |
2203903 | Ham | Jun 1940 | |
2378248 | Russell et al. | Jun 1945 | |
3008828 | Henn et al. | Nov 1961 | |
3304179 | Field et al. | Feb 1967 | |
3677760 | Iwano et al. | Jul 1972 | |
3802883 | Ohkubo et al. | Apr 1974 | |
R19354 | Elliott | Oct 1934 |
Entry |
---|
The Camera, "Technical & Scientific Notes", May 1924, pp. 316-317. |
British Journal of Photography, vol. 111, No. 5433, Sept. 1964, pp. 722, 723. |
Handbook of Photography, Ed. by Henney & Dudley, p. 385-386, 1939. |
Transactions of SMPE, vol. XIII, No. 38, 1929, Crabtree & Hart, "Some Properties of Fixing Baths", pp. 364-405. |
Number | Date | Country | |
---|---|---|---|
Parent | 458935 | Apr 1974 |