CH77384A
(en )
1918-04-16
Method and device for making used envelopes reusable
CH76103A
(en )
1917-11-01
Method and device for the production of paper bags
CH58178A
(en )
1913-02-17
Method and device for keeping mustard fresh
CH75661A
(en )
1917-09-01
Method and device for the production of folded paper tubes
AT87324B
(en )
1922-02-25
Method and device for making trains in tubes.
CH76770A
(en )
1918-07-01
Method and device for generating heat
CH74442A
(en )
1917-06-16
Method and device for homogenizing
CH74127A
(en )
1917-01-16
Method and device for evaporating liquids
CH80076A
(en )
1919-02-01
Method and device for heating substances in any container
CH72456A
(en )
1916-05-16
Method and device for separating different types of material
CH76255A
(en )
1917-11-16
Device for parallel and series connection of resistors
CH75351A
(en )
1917-07-16
Method and device for the production of interchangeable photographs
CH79612A
(en )
1918-12-16
Method and device for manufacturing objects from concrete
CH79365A
(en )
1918-11-01
Method and device for the automated welding of hollow bodies
CH79341A
(en )
1918-11-01
Method and device for the extraction of shale oils
CH72924A
(en )
1916-07-17
Method and apparatus for mixing sludge
CH75849A
(en )
1917-10-01
Method and device for the manufacture of articles from reinforced concrete
CH79346A
(en )
1919-01-16
Method and device for determining the exposure time in photographic recordings
CH61499A
(en )
1913-10-01
Method and device for drying material
CH80085A
(en )
1919-06-02
Method and device for the production of cardboard boxes
CH73922A
(en )
1916-12-16
Method and device for producing lateral cutouts in paper strips
AT82801B
(en )
1921-02-25
Method and device for the dialytic separation of colloids and crystalloids.
CH57547A
(en )
1913-01-16
Method and device for the evaporation of liquids
CH71951A
(en )
1916-03-16
Method and apparatus for making multiple flanges on tubes
CH76823A
(en )
1918-02-01
Method and device for the production of shoe protectors