CH873A
(en )
1889-08-02
Diaphane hatching plate with rotating device for the production of autotypical negatives
FR506205A
(en )
1920-08-17
Photo film curing process
CH1428A
(en )
1889-12-07
Press for the production of artificial honeycombs
CH888A
(en )
1889-08-02
Curve device for the production of patterns for footwear
CH74730A
(en )
1917-04-02
Device for making ropes
FR494086A
(en )
1919-08-29
Temperature regulator for artificial incubator
CH57833A
(en )
1913-02-01
Device for regulating water turbines
CH4577A
(en )
1892-06-30
Plaster wadding for the production of plastic bandages
CH47273A
(en )
1910-06-16
Device for the photographic reproduction of negative blueprints for the production of reduced printing plates
CH72071A
(en )
1916-03-16
Device for holding strips provided with inscriptions
FR354005A
(en )
1905-09-26
Process of development in photography allowing at the same time to harden the gelatin layer
FR494506A
(en )
1919-09-11
Automatic device for taking still or moving photographs as well as for printing positive films
FR347961A
(en )
1905-03-28
Photographic application on mother-of-pearl
CH73664A
(en )
1916-11-01
Device for saving heating material
CH75008A
(en )
1917-05-16
Device for saving heating material
CH71427A
(en )
1916-08-01
Device for making plaster ceilings
CH72968A
(en )
1916-07-17
Device for attaching photographic apparatus etc. to sticks
CH15723A
(en )
1898-07-31
Device for the production of wadding with a fleece cover on both sides
CH72751A
(en )
1916-06-16
Device for recycling cinema films as individually cut cinema film frames
CH74811A
(en )
1917-04-16
Device for producing brushwood waves and the like
AT52263B
(en )
1912-02-26
Process for making combination photographic negatives.
CA33043A
(en )
1889-12-04
Translucent film for use in the art of photo-engraving
CH1722A
(en )
1890-04-15
Mechanical device for the production of threads from cellulose cardboard
CH75652A
(en )
1918-02-01
Device for making butter
CH73590A
(en )
1916-10-16
Daylight developing apparatus