CH72184A
(en )
1916-09-16
Device for forming loopholes
CH72284A
(en )
1916-05-01
Device for estimating the distance from flying machines
CH74730A
(en )
1917-04-02
Device for making ropes
DE328223C
(en )
1920-10-27
Device for determining current fluctuations
CH72599A
(en )
1916-06-02
Device for the storm-proof fastening of interlocking tiles
CH69928A
(en )
1915-08-02
Device for forming buttonhole slits
CH77306A
(en )
1918-04-01
Device to prevent bedwetting
CH77556A
(en )
1918-05-01
Device for illustrating the elementary arithmetic operations
CH66913A
(en )
1914-10-16
Device for making surface patterns
CH75652A
(en )
1918-02-01
Device for making butter
CH66434A
(en )
1914-09-01
Device for preparing emulsions
CH72889A
(en )
1916-12-01
Device for monitoring due dates
CH73664A
(en )
1916-11-01
Device for saving heating material
CH75008A
(en )
1917-05-16
Device for saving heating material
CH72071A
(en )
1916-03-16
Device for holding strips provided with inscriptions
CH71427A
(en )
1916-08-01
Device for making plaster ceilings
FR484913A
(en )
1917-11-22
Filtration apparatus
CH77855A
(en )
1918-06-01
Device for actuating prostheses
CH73513A
(en )
1916-10-16
Mechanism for transmitting micro-movements
CH72462A
(en )
1916-06-02
Device for the mechanical spreading of sand
CH73661A
(en )
1916-11-01
Device for the production of concrete steps
FR481179A
(en )
1916-11-08
Carburetor system
CH82898A
(en )
1919-11-01
Device for the electrolysis of halogen alkalis
CH63578A
(en )
1914-02-02
Device for the production of black lead
CH72317A
(en )
1916-05-01
Device for cooling transformer oil