CH4258A
(en )
1892-03-31
Advanced device for automatic switching on and off of gas lamps and lanterns
FR407429A
(en )
1910-02-28
Device for automatic switching on and off of gas lamps
FR2908E
(en )
1904-07-12
Device for automatic switching on and off of gas lanterns
FR341353A
(en )
1904-08-06
Acetylene gas device for lighting city lanterns
FR17370E
(en )
1913-08-22
Device for automatic switching on and off of gas lamps at set times
FR440340A
(en )
1912-07-08
Device for automatic switching on and off of gas lamps at set times
FR335818A
(en )
1904-02-15
Device for the automatic switching on and off of street lamps and other gas lamps
FR335580A
(en )
1904-02-01
Device system for automatic switching off and switching on of incandescent lamps
FR3140E
(en )
1904-09-10
New device for lighting gas lanterns
FR331512A
(en )
1903-09-17
New device for lighting gas lanterns
CH17544A
(en )
1899-07-15
Advanced device for automatic switching on and off of gas burners
FR351592A
(en )
1905-07-20
Device for automatic remote switching on and off of gas lanterns
CH9684A
(en )
1895-07-31
Advanced device for automatically turning street lights and other gas lamps on and off
FR19573E
(en )
1915-03-16
Device for automatic switching on and off of gas burners at fixed times
FR474235A
(en )
1915-02-12
Device for automatic switching on and off of gas burners at fixed times
FR406013A
(en )
1910-01-20
Chronometric device for switching on and off gas lamps
FR15321E
(en )
1912-06-18
Device for automatic switching on and off of gas burners
FR15608E
(en )
1912-08-16
Device for automatic switching on and off of gas burners
FR16461E
(en )
1913-02-06
Device for automatic switching on and off of gas burners
FR18429E
(en )
1914-04-24
Device for automatic switching on and off of gas burners
FR20047E
(en )
1916-03-08
Device for automatic switching on and off of gas burners
FR20099E
(en )
1916-03-22
Device for automatic switching on and off of gas burners
FR20148E
(en )
1916-10-06
Device for automatic switching on and off of gas burners
FR435762A
(en )
1912-03-09
Device for automatic switching on and off of gas burners
FR10287E
(en )
1909-06-09
Device for switching on and off gas lamps at fixed times