CH77379A
(en )
1918-04-16
Method and apparatus for the extraction of nitrogenous matter from dairy residues
FR434947A
(en )
1912-02-16
Method and apparatus for the manufacture of dried canned animal feed
FR481877A
(en )
1917-01-24
Method and apparatus for sterilizing water
FR428940A
(en )
1911-09-11
Method and apparatus for the protection of vines
FR426824A
(en )
1911-07-19
Method and apparatus for browning silverware
FR16935E
(en )
1913-05-14
Method and apparatus for browning silverware
FR18760E
(en )
1914-07-04
Method and apparatus for browning silverware
CH50080A
(en )
1911-04-17
Method and apparatus for browning silverware
FR483881A
(en )
1917-08-17
Method and apparatus for the concentration of acids
FR481056A
(en )
1916-10-27
Method and apparatus for obtaining metals
FR497959A
(en )
1919-12-23
Method and apparatus for cleaning sewage pipes
FR512596A
(en )
1921-01-26
Method and apparatus for separating materials of different species
FR20411E
(en )
1917-12-21
Method and apparatus for the preparation of ores and other similar substances
FR431142A
(en )
1911-11-03
Method and apparatus for the evaporation of liquids
FR460315A
(en )
1913-11-28
Method and apparatus for sterilizing milk
FR434722A
(en )
1912-02-10
Method and apparatus for the incineration of household waste
FR500145A
(en )
1920-03-03
Method and apparatus for the production of nitrogen oxide
FR483670A
(en )
1917-07-31
Method and apparatus for drying articles of various kinds
FR19767E
(en )
1915-08-17
Method and apparatus for ear education
FR449264A
(en )
1913-02-22
Method and apparatus for ear education
FR18096E
(en )
1914-02-06
Method and apparatus for ear education
FR449456A
(en )
1913-02-27
Method and apparatus for sterilizing milk
FR486761A
(en )
1918-05-08
Apparatus and method for the transformation of hydrocarbons
FR497935A
(en )
1919-12-20
Method and apparatus for refrigeration
FR504725A
(en )
1920-07-13
Improved method and apparatus for the oxidation of ammonia