CH81220A
(en )
1919-10-16
Suction apparatus for the detection and treatment of diseases and for laboratory work
CH78963A
(en )
1918-09-16
Process and device for the reduction of ores
CH82598A
(en )
1920-03-01
Method and device for the electrical treatment of gases and vapors
FR504068A
(en )
1920-06-24
Method and apparatus for the treatment of sludge
FR496753A
(en )
1919-11-15
Method and apparatus for the treatment of wulfenite
CH83500A
(en )
1919-12-01
Device for cleaning and de-awning of grain
CH82168A
(en )
1919-09-01
Syringe for treating urethral diseases
FR521474A
(en )
1921-07-15
Porridge or powder for the treatment of vines and other plants
FR507279A
(en )
1920-09-09
Improvements in the treatment of materials containing carbon
CH79123A
(en )
1919-03-01
Equipment for suction and transport of waste materials
CH79959A
(en )
1919-01-16
Process for the treatment of tarry liquids which are difficult to distil
CH79338A
(en )
1919-03-17
Process and apparatus for the electrolytic production of mercury oxide
CH83048A
(en )
1920-04-01
Device for cleaning and disinfecting telephone sets
FR534317A
(en )
1922-03-23
Process for the treatment of zinc ores, zinc concentrates and residues
AT83486B
(en )
1921-04-11
Apparatus and method for charging the same for dry or wet sweating of sludge and similar products.
CH78308A
(en )
1918-07-01
Process and device for the production of dry fuels
CH67578A
(en )
1915-02-16
Device to facilitate the treatment of cheese wheels
CH82596A
(en )
1919-10-01
Process and apparatus for the continuous separation of liquid mixtures or emulsions
FR522941A
(en )
1921-08-09
Methods and apparatus for the treatment of coal
FR546189A
(en )
1922-11-02
Improvements in partial combustion processes for the treatment of aliphatic hydrocarbons
CH77115A
(en )
1918-03-01
Process for the evaporation of liquids and liquids containing liquids
CH250216A
(en )
1947-08-15
Process for the preparation of ointments suitable for the treatment of mucous membranes.
FR497279A
(en )
1919-12-02
Apparatus for measuring hardness and plasticity
FR491475A
(en )
1919-06-04
Method and apparatus for purifying camphor
CH82700A
(en )
1919-10-16
Device for metering alternating currents for patient treatment and examination