FR521356A
(en )
1921-07-11
Method and apparatus for fractional distillation
CH79336A
(en )
1919-08-01
Method and apparatus for fractional distillation
FR21055E
(en )
1920-03-19
Method and apparatus for the distillation of glycerin
FR495038A
(en )
1919-09-26
Method and apparatus for the distillation of glycerin
FR513982A
(en )
1921-02-28
Advanced tray for distillation and rectification columns
FR489334A
(en )
1919-01-22
Method and apparatus for cooling hot stills
FR541253A
(en )
1922-07-25
Method and apparatus for testing materials
FR521624A
(en )
1921-07-16
Method and apparatus for relieving pumps
FR491075A
(en )
1919-05-20
Method and apparatus for measuring the pitch of threads
CH81906A
(en )
1919-08-01
Method and apparatus for the distillation of wood and peat
FR491476A
(en )
1919-06-04
Method and apparatus for refining camphor
FR515721A
(en )
1921-04-06
Method and apparatus for the distillation of mixtures of liquids
FR494340A
(en )
1919-09-05
Method and apparatus for massage
FR498286A
(en )
1920-01-07
Method and apparatus for the recovery of solvents
FR521446A
(en )
1921-07-13
Method and apparatus for spraying materials
FR582347A
(en )
1924-12-16
Method and apparatus for the distillation of coal
FR538031A
(en )
1922-06-02
Method and apparatus for the distillation of sulfur
FR555825A
(en )
1923-07-06
Method and apparatus for carrying out fractional distillations
FR495148A
(en )
1919-09-30
Fractional distillation apparatus
FR21147E
(en )
1920-05-20
Fractional distillation apparatus
FR496753A
(en )
1919-11-15
Method and apparatus for the treatment of wulfenite
FR492756A
(en )
1919-07-18
Method and apparatus for making clasps
FR443054A
(en )
1912-09-16
Improved process and apparatus for fractional distillation
FR498960A
(en )
1920-01-28
Method and apparatus for the manufacture of bricks for construction
FR491475A
(en )
1919-06-04
Method and apparatus for purifying camphor