DK29306C
(en )
1922-02-06
Procedure for the production of gelatin printing plates.
DK24344C
(en )
1919-04-07
Procedure for the manufacture of printing plates.
DK30661C
(en )
1922-11-13
Procedure for the production of very thin magnesium.
DK29275C
(en )
1922-01-30
Procedure for the Production of Saccharin.
DK31406C
(en )
1923-03-12
Procedure for Making Litopon.
DK32613C
(en )
1923-12-10
Procedure for Making Litopon.
DK33140C
(en )
1924-04-28
Procedure for Making Litopone.
DK34353C
(en )
1925-04-06
Procedure for the production of printing plates for the reproduction of letters and the like.
DK29666C
(en )
1922-05-29
Procedure for the Production of Trinitroresorcin.
DK27863C
(en )
1921-06-20
Procedure for the production of gravure molds.
ES79096A1
(en )
1921-10-16
Photo plates.
DK32076C
(en )
1923-08-06
Procedure for Making Copy Foils.
DK34174C
(en )
1925-02-23
Method of Making Film Printing Plates for Photocolloid Printing.
DK37237C
(en )
1927-03-14
Procedure for the production of printing plates for lithographic use.
DK33510C
(en )
1924-08-04
Procedure for the Production of Charcoal.
DK30693C
(en )
1922-11-20
Procedure for Manufacturing Perleessens.
DK34028C
(en )
1925-01-12
Procedure for Making Emulsion Gelatin.
DK32289C
(en )
1923-09-17
Procedure for Making Cartoons.
DK31972C
(en )
1923-07-16
Procedure for the production of dry lithographic printing ink.
DK36274C
(en )
1926-07-19
Procedure for the production of printing inks.
DK35678C
(en )
1926-02-22
Procedure for Manufacturing Perleessens.
ES79942A1
(en )
1922-02-16
Procedure for preparing printing plates.
ES70073A1
(en )
1919-07-16
Punches improvements.
DK34016C
(en )
1925-01-05
Procedure for the production of rubber clichés.
DK30081C
(en )
1922-08-14
Center cartridge.