|
HU9401804D0
|
|
Stepless friction gear to 2000 kw
|
|
HU902663D0
|
|
Axial piston pump
|
|
US2778813A
|
|
Color photographic material from resinous sulfonyl chlorides
|
|
US2677612A
|
|
Photographic light-sensitive element
|
|
US2696438A
|
|
Light screening photographic layer
|
|
US2677683A
|
|
Cyclammonium quaternary salts and dyes produced thereof
|
|
US2681856A
|
|
Photographic material and process for making an azo dye bleachout image
|
|
US2616806A
|
|
Process for the manufacture of colored photographic images
|
|
US2698342A
|
|
Acylated derivatives of amino-sulfonic acids and method for their preparation
|
|
US2612496A
|
|
Acid azo dyes
|
|
US2612448A
|
|
Photographic elements containing azo dyes and process using them
|
|
US2221792A
|
|
Photographic material and process of making same
|
