Number | Name | Date | Kind |
---|---|---|---|
3721562 | Land | Mar 1973 | |
3753764 | Haefner | Aug 1973 | |
3854945 | Bush et al. | Dec 1974 |
Entry |
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B351,673, Jan. 1975, Fleckenstein et al., 96/3. |
"Neutralizing Mat'l in Photo Elements" Research Disclosure (Eastman Kodak) July 1974, pp. 22-24. |