FR990475A
(en )
1951-09-21
Phenoxyalkylamines used as accelerators for photographic developers
CH287583A
(en )
1952-12-15
Process for producing multicolor photographic images.
CH314486A
(en )
1956-06-15
Process for the preparation of indolyl compounds
FR1001730A
(en )
1952-02-27
advanced photographic emulsions
AT162401B
(en )
1949-02-25
Process for the regeneration of photographic layers by erasing the latent image
AT162402B
(en )
1949-02-25
Process for avoiding the decline of the latent image of photographic layers in the latency period
CH329758A
(en )
1958-05-15
Process for the production of photographic images
CH289401A
(en )
1953-03-15
Multilayer photographic material for color photographic processes.
FR988635A
(en )
1951-08-29
Diazotype materials for photo-printing
CH270698A
(en )
1950-09-15
Method for fixing permanent waves produced by means of thio compounds.
CH274542A
(en )
1951-04-15
Process for developing light-sensitive diazotype layers.
CH264319A
(en )
1949-10-15
Process for making photographic images.
AT191399B
(en )
1957-08-26
Process for the preparation of diazo compounds
CH307649A
(en )
1955-06-15
Process for generating photographic contrasts.
AT183309B
(en )
1955-09-26
Process for making diazotype copies
CH307331A
(en )
1955-05-31
Process for the emulsion polymerization of unsaturated polymerizable compounds.
CH328771A
(en )
1958-03-31
Process for the color correction of color photographic images by azo dye masks
CH320780A
(en )
1957-04-15
Process for the improvement of whiteness in color photographic images
CH339052A
(en )
1959-06-15
Process for the preparation of two-component photosensitive diazotype layers
AT174747B
(en )
1953-04-25
Method for the projection of lenticular films
AT170272B
(en )
1952-02-11
Process for making photographic enlargements
AT172015B
(en )
1952-07-25
Apparatus for reproduction photography
AT178899B
(en )
1954-06-25
Process for the preparation of alkyl nitrile-2-acetoxy
AT194709B
(en )
1958-01-10
Process for the preparation of photographic light-sensitive material
AT168190B
(en )
1951-04-25
Method of making nets by lace-making