CH71457A
(en )
1916-02-01
Product to protect surfaces in general, and worked leathers in particular from contact with water
FR477143A
(en )
1915-09-24
Reciprocating thruster for vehicles moving in air or in water
FR388495A
(en )
1908-08-13
Device to revitalize the water in aquariums
FR486879A
(en )
1918-05-15
Improvements in water electrolysis devices
FR470606A
(en )
1914-09-19
Improvements in the processes for obtaining artificial bristles
FR439881A
(en )
1912-06-26
Improvements in water treatment
FR488075A
(en )
1918-08-16
Improvements in the application of taps to earthenware or similar objects
FR386718A
(en )
1908-06-20
Improvement in the processes for obtaining eaux-de-vie
FR500916A
(en )
1920-03-27
Improvements in the use of research switches in automatic telephony
FR421472A
(en )
1911-02-23
Device to buy back the wear of the guard rails in curves
FR486190A
(en )
1918-03-14
Process for the extraction of proteinaceous materials from substances containing vegetable protein, for use in the industrial arts
FR443789A
(en )
1912-10-02
Process for purifying black water and for extracting the water contained in the sludge
FR439884A
(en )
1912-06-26
Improvements in water treatment
FR439883A
(en )
1912-06-26
Improvements in water treatment
FR439882A
(en )
1912-06-26
Improvements in water treatment
FR429023A
(en )
1911-09-13
Improved preparation and process for cleaning silverware, silverware, jewelry and the like
FR19242E
(en )
1914-12-01
Application of floating wheels to carry hydro-aviation devices and other air-powered devices on the water
FR466439A
(en )
1914-05-12
Application of floating wheels to carry hydro-aviation devices and other air-powered devices on the water
FR472379A
(en )
1914-12-03
Improvements in water sterilizers
FR557548A
(en )
1923-08-10
Improvements made to the construction of ozone generators used in water purification installations
FR466045A
(en )
1914-05-02
Machine used to combat the effects of water hammers and frost in water pipes
FR372143A
(en )
1907-03-26
Fan for cooling cooling water in automobiles
FR20064E
(en )
1916-03-22
Preceded to agglomerate vegetables in the form of tablets
FR410285A
(en )
1910-05-17
Use of propellers to use the force of water currents
FR20252E
(en )
1917-06-01
Process for the manufacture of toothpaste water in solid form