Fogged, direct positive silver halide emulsion containing a nitr

Details Fogged, direct positive silver halide emulsion containing a nitr Fogged, direct positive silver halide emulsion containing a nitr

1973-12-18

1976-01-20

Louie, Jr., Won H.

Gas separation: apparatus

Chromatography type apparatus

96107, 96108, 96120, 96129, 96130, 96139, G03C 136

Patent

active

039335054

ABSTRACT:
A silver halide photographic emulsion for direct positives, containing a fluorene compound having at least one nitro group as a substituent.

REFERENCES:
patent: 2693416 (1954-11-01), Butterfield
patent: 3062651 (1962-11-01), Hillson
Chemical Abstract Vol. 72, 1970 P. 84936g.

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