CH55417A
(en )
1912-08-16
Device for regulating the passage of gas in a pipe
FR448381A
(en )
1913-01-29
Device used to temporarily block a gas line
CH61079A
(en )
1913-09-01
Device used to temporarily block a gas line
FR436422A
(en )
1912-03-27
Stop device for gas or other fluids
FR450134A
(en )
1913-03-15
Device for operating gas lanterns
FR465315A
(en )
1914-04-14
Safety device for gas or other fluids pipes
FR412973A
(en )
1910-07-28
Combined gas and water valve for liquid heaters
FR413499A
(en )
1910-08-10
Valve device for gas and other pipes
FR464395A
(en )
1914-03-19
Device for cleaning discharge pipes or gas pipes and other similar pipes
FR426731A
(en )
1911-07-17
Device increasing the gas flow in the pipes
FR450323A
(en )
1913-03-21
Balancing device for steam or gas turbines
FR442090A
(en )
1912-08-23
Adjustable flow injector for gas burners
FR469456A
(en )
1914-08-01
Gas installation for heating liquids
FR432307A
(en )
1911-12-04
Safety valve for pipes and gas appliances
FR433691A
(en )
1912-01-13
Apparatus for measuring or recording the flow of fluid passing through a pipe
FR499339A
(en )
1920-02-07
Apparatus for measuring the amount of an elastic fluid passing through a pipe
FR482831A
(en )
1917-04-27
Regulating device for gas pumps
FR441202A
(en )
1912-08-01
Obturator for gas pipes
FR419020A
(en )
1910-12-24
Key for gas meter valve
FR417227A
(en )
1910-11-09
Liquid hydrocarbon burner
FR423316A
(en )
1911-04-13
Ignition device for gas burners
FR436484A
(en )
1912-03-28
Warning device for gas lines
CH74759A
(en )
1917-06-01
Apparatus for measuring the amount of an elastic fluid passing through a pipe
FR404906A
(en )
1909-12-15
Protective device for gas meters
FR439321A
(en )
1912-06-11
Apparatus for the production of combustible gas from a combustible liquid