BE385961A
(en )
1932-02-29
Process for making rigid matches made of paper, cardboard or other similar raw materials
FR760516A
(en )
1934-02-24
Paper coating process
FR814797A
(en )
1937-06-29
Process for the manufacture of aerosol filters made of paper, cardboard, felt or other similar materials with a fibrous structure
FR722189A
(en )
1932-03-14
Process and apparatus for the manufacture of articles made of cardboard, felt or any other similar material
FR738553A
(en )
1932-12-27
Process for the manufacture of annular caps of paper, insulating cardboard or other similar materials
BE411094A
(en )
1935-09-30
Process and installation for the manufacture of matchstrips of paper, paper-cardboard, cardboard or the like
FR813389A
(en )
1937-05-31
Improved process for making corrugated cardboard or paper
CH203156A
(en )
1939-02-28
Process for the production of carbonless paper.
FR747536A
(en )
1933-06-16
Cardboard or container of paper or the like
FR697683A
(en )
1931-01-21
Process for the production of combinations of paper and rubber and others
FR720161A
(en )
1932-02-16
Waterproofing process for paper and cardboard boxes
FR765348A
(en )
1934-06-08
Manufacturing process of an enamelled paper or cardboard
FR722837A
(en )
1932-03-26
Process for the reduction of straws, grasses, etc., for the manufacture of paper and cardboard
FR783620A
(en )
1935-07-17
Tight-closing cardboard or paper containers and their production process
FR732255A
(en )
1932-09-15
Machine for the automatic production of paper or cardboard tubes
FR745931A
(en )
1933-05-18
Paper making process
FR719656A
(en )
1932-02-09
Corrugated paper and board manufacturing process
FR806358A
(en )
1936-12-15
Process for the production of paper cushions
FR505679A
(en )
1920-08-04
Folding basket of paper, cardboard or the like
FR766130A
(en )
1934-06-21
Detachable stapling device for boxes or similar articles made of paper or other lightweight materials
FR735612A
(en )
1932-11-12
Paper making process
BE346259A
(en )
1927-12-31
Process for the manufacture of cardboard matches
FR535410A
(en )
1922-04-14
Process for waterproofing wood, cardboard, paper, canvas, or other materials
FR738991A
(en )
1933-01-04
Paper gluing process
FR771058A
(en )
1934-09-29
Manufacturing process of a flexible raw material in mechanical paper or cardboard