FR517707A
(en )
1921-05-10
Method and device for calming and making usable streams of all categories
FR14375E
(en )
1911-11-27
Safety device for percussion rockets
FR428119A
(en )
1911-08-23
Device and method for removing metal casings from concrete foundations
FR421493A
(en )
1911-02-23
Method and device for the safe blasting of blastholes
FR425337A
(en )
1911-06-08
Method and device for gas ignition
FR469247A
(en )
1914-07-27
Method and device for the preparation by centrifugation of explosive charges using fusible explosives
FR792507A
(en )
1936-01-04
Method and device for the construction of an apparatus for catalytic hydrogenation
FR415355A
(en )
1910-09-24
Method and device for the protection of safes
FR433875A
(en )
1912-01-18
Method and device for igniting mercury vapor lamps
FR429838A
(en )
1911-10-02
Method and device for clearing blastholes
FR422184A
(en )
1911-03-15
Method and device for the production of slabs
FR438772A
(en )
1912-05-28
Method and device for refining calcium
FR15631E
(en )
1912-08-16
Method and device for refining calcium
FR430944A
(en )
1911-10-27
Method and apparatus for preparing explosive charges
FR439524A
(en )
1912-06-15
Device for the electromagnetic blowing of sparks
FR429498A
(en )
1911-09-23
Method and device for pouring ice-pouring crucibles
FR517885A
(en )
1921-05-14
Method and device for obtaining short boards
FR432325A
(en )
1911-12-04
Method and ignition device for explosive engines operating with heavy hydrocarbons
FR14053E
(en )
1911-09-11
Method and device for the production of slabs
FR424465A
(en )
1911-05-15
Improvements to processes and apparatus for igniting explosive mixtures
FR432574A
(en )
1911-12-09
Method and safety device for elevators
FR428824A
(en )
1911-09-08
Method and device for loading extraction materials
FR415009A
(en )
1910-09-16
Method and device for improving the draft of chimneys
FR428766A
(en )
1911-09-07
Spark ignition device
FR414149A
(en )
1910-08-26
Method and device for igniting the thundering mixture in reversing explosive engines