CH80792A
(en )
1919-04-01
Firestone and method of making the same
CH81893A
(en )
1919-08-01
Method of making embroidery
CH86573A
(en )
1920-09-01
Process for the production of gravure forms.
CH82936A
(en )
1919-11-01
Key and method of making the same
CH76294A
(en )
1917-11-16
Briquette and method of making the same
CH83448A
(en )
1919-12-01
Method of making hollow walls
CH82935A
(en )
1919-11-01
Device for the production of moldings
CH83517A
(en )
1919-12-16
Method and device for the production of photographs of terrain from aircraft
CH80791A
(en )
1919-04-16
Structure and method of manufacturing the same
CH78053A
(en )
1918-06-17
Artificial building block and method of making the same
CH86848A
(en )
1920-10-16
Process for the production of easily filterable viscose.
AT102642B
(en )
1926-02-25
Method and device for the production of squibs.
CH88567A
(en )
1921-03-01
Process for the production of trinitroresorzin.
CH77220A
(en )
1918-03-16
Method of making briquettes
AT108940B
(en )
1928-02-25
Sound tube and method of making the same.
AT87518B
(en )
1922-03-10
Reinforced concrete hull and method of manufacturing the same.
CH79146A
(en )
1918-10-01
Method of making briquettes
CH81594A
(en )
1919-06-16
Pan-like device for making Knöpfli
CH122398A
(en )
1927-09-16
Electrode and method of making the same.
AT89534B
(en )
1922-09-25
Method and device for the production of oak wood imitations.
AT105029B
(en )
1926-12-27
Method and device for the synthetic production of ammonia.
CH82104A
(en )
1919-09-01
Process for the production of oak imitations
AT98697B
(en )
1924-12-10
Process and means for the production of carbonic acid baths.
CH82062A
(en )
1919-08-16
Process for the production of leather substitutes
CH83254A
(en )
1919-11-17
Method of making hollow concrete walls