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| Number | Title | Issue Date |
| 4193801 | Process for producing photographic silver halide material A method of incorporating water insoluble additives (e.g. sensitizing dyes) in colloid layers of photographic silver halide material is provided. The additives are dissolved in a fused water soluble organic compound (e.g. sorbitol or succinimide) and the ... | 03/18/1980 |
| 4146399 | Preparation of photographic material Photographic additives in particular water-insoluble photographic additives are rendered easier to incorporate into photographic layers by finely dividing them, mixing them with a finely divided water soluble substance and compressing the resulting mixtur... | 03/27/1979 |
| 4140530 | Preparation of photographic material Photographic additives in particular water insoluble photographic additives are rendered easier to incorporate into photographic layers by finely dividing them, mixing them with a finely divided water soluble substance and preparing granules of the mixtur... | 02/20/1979 |
