CH79499A
(en )
1919-04-16
Glass image and process for preparing it
FR506205A
(en )
1920-08-17
Photo film curing process
FR519074A
(en )
1921-06-04
Process for coloring glass
FR516695A
(en )
1921-04-23
Process for matting glass
FR519675A
(en )
1921-06-14
Method and apparatus for the manufacture of glass sheets
FR492348A
(en )
1919-07-04
Apparatus for the production of plate glass
FR515116A
(en )
1921-03-24
Apparatus for the production of glass objects
FR519716A
(en )
1921-06-14
Furnace for glass making
FR495566A
(en )
1919-10-11
Improved method and apparatus for the manufacture of glass cylinders
FR523246A
(en )
1921-08-13
Method and device for the manufacture of crucibles
FR496643A
(en )
1919-11-12
Apparatus for the manufacture of quartz glass objects
FR524076A
(en )
1921-08-30
Advanced process and apparatus for the manufacture of glass
FR514189A
(en )
1921-03-04
Process for drawing sheet glass
FR491447A
(en )
1919-06-03
Advanced coating and process for preparing it
FR499792A
(en )
1920-02-21
Diastatic composition and method for preparing it
FR651985A
(en )
1929-03-01
Process for the manufacture of glass
FR621565A
(en )
1927-05-13
Process for the mechanical manufacture of ampoules starting from glass tubes
FR489044A
(en )
1918-12-07
Casting method for glass furnaces
FR643197A
(en )
1928-09-11
Process for the mechanical manufacture of lined glass
FR517801A
(en )
1921-05-12
Process for the manufacture of corks
FR512925A
(en )
1921-02-03
Method and apparatus for spinning glass
FR497467A
(en )
1919-12-06
Process for the manufacture of methyl chloroformate
FR484096A
(en )
1917-08-30
Advanced method for plucking glass
FR518053A
(en )
1921-05-19
Process for obtaining photographic silhouettes
FR503954A
(en )
1920-06-22
Process for obtaining colored photographic images