FR477143A
(en )
1915-09-24
Reciprocating thruster for vehicles moving in air or in water
FR532877A
(en )
1922-02-14
Device for determining the depths of the seas and other distances underwater
FR388495A
(en )
1908-08-13
Device to revitalize the water in aquariums
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
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
FR439882A
(en )
1912-06-26
Improvements in water treatment
FR439883A
(en )
1912-06-26
Improvements in water treatment
FR468905A
(en )
1914-07-20
Device for retaining sand, stones and other bodies carried by running water, in particular for hydraulic plants
FR429023A
(en )
1911-09-13
Improved preparation and process for cleaning silverware, silverware, jewelry and the like
FR466439A
(en )
1914-05-12
Application of floating wheels to carry hydro-aviation devices and other air-powered devices on the water
FR453150A
(en )
1913-05-31
Improvements in devices for pumping water
FR472379A
(en )
1914-12-03
Improvements in water sterilizers
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
FR426308A
(en )
1911-07-04
Improvements in water level indicators
FR409753A
(en )
1910-04-30
Tank intended for the electrolysis of liquids and, in particular, water
FR15161E
(en )
1912-05-11
Device for actuating animated toys, in particular toys intended to move in water