FR846470A
(en )
1939-09-18
Colored photographic layers
FR844866A
(en )
1939-08-03
Photographic developers
CH218381A
(en )
1941-12-15
Process for sensitizing halide silver emulsions.
FR824203A
(en )
1938-02-04
Polychrome photography process
AT160168B
(en )
1941-02-25
Development process for photographic silver halide layers.
AT160167B
(en )
1941-02-25
Development process for photographic silver halide layers.
FR50775E
(en )
1941-03-26
photographic emulsions
CH201308A
(en )
1938-11-30
Developers for photographic silver halide emulsion layers.
FR807002A
(en )
1936-12-31
Photographic developers
CH213441A
(en )
1941-02-15
Process for developing photographic silver halide layers.
CH216430A
(en )
1941-08-31
Process for the reverse development of photosensitive halide silver emulsion layers without intermediate exposure.
FR804471A
(en )
1936-10-24
Photographic developers
CH219165A
(en )
1942-01-31
Process for sensitizing photographic silver halide emulsions.
FR868734A
(en )
1942-01-14
Substratum for photographic films
FR867327A
(en )
1941-10-13
Advanced anti-static photographic films
FR830143A
(en )
1938-07-21
Enlarger for photography
DK76503C
(en )
1953-10-12
Process for producing a photographic silver halide emulsion with increased sensitivity.
DK73034C
(en )
1951-09-03
Process for producing a photographic silver halide emulsion with increased sensitivity.
CH195979A
(en )
1938-02-28
Shutter blade for photographic lens shutters.
AT152632B
(en )
1938-02-25
Drying apparatus for photographic copies.
CH223558A
(en )
1942-09-30
Photographic layer for suction processes.
FR852992A
(en )
1940-03-07
Improvements to photographic films
IE15045L
(en )
1938-05-02
Silver halide emulsion layers
BE430105A
(en )
1938-10-31
Method for avoiding fogging phenomena in light-sensitive halogen silver layers
FR819754A
(en )
1937-10-26
Photographic developers