Gas separation: apparatus – Electric field separation apparatus – Electrode cleaner – apparatus part flusher – discharger – or...
Patent
1976-04-28
1977-09-13
Klein, David
Gas separation: apparatus
Electric field separation apparatus
Electrode cleaner, apparatus part flusher, discharger, or...
96 3, 96 29R, 96 73, 96 74, 96 76R, 96 77, 96107, G03C 554, G03C 700, G03C 148, G03C 140
Patent
active
040479536
ABSTRACT:
The use of a 4-thiohydantoine in combination with an image-wise exposed diffusion transfer element comprising a negative silver halide emulsion layer and an associated physical development layer containing cadmium sulfide nuclei and an associated initially immobile dye-providing substance provides improved diffusion transfer dye images.
REFERENCES:
patent: 2346065 (1944-04-01), Carroll et al.
patent: 2698245 (1954-12-01), Land
patent: B351673 (1975-01-01), Fleckenstein et al.
Eastman Kodak Company
Hilst R. P.
Klein David
Schilling Richard L.
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