CH47188A
(en )
1910-06-01
Device for temporarily keeping open and automatically closing a gas passage for incandescent gas
CH59593A
(en )
1913-05-16
Device for opening and closing feed flaps
CH57969A
(en )
1913-02-17
Device for closing ovens
NL169C
(en )
1914-04-01
Device for controlling a gas engine without valves
CH63698A
(en )
1914-02-16
Method and device for sealing gas pipes
CH61639A
(en )
1913-10-01
Device for opening and closing roof fans
CH56987A
(en )
1912-12-02
Device for closing drains
CH60687A
(en )
1913-08-01
Device for closing ovens
CH48517A
(en )
1910-11-01
Closing device for the gas supply line for inverted burners
CH49037A
(en )
1911-01-02
Device for the periodic opening and closing of gas burner supply lines
CH46330A
(en )
1910-02-16
Device for dedusting gases
CH57414A
(en )
1913-01-02
Device for closing boxes
CH60460A
(en )
1913-07-16
Device on a door for opening and closing the same
CH65654A
(en )
1914-07-01
Device on a door for opening and closing the same
CH42854A
(en )
1909-03-16
Equipment in chimneys for cleaning the flue gases
CH43004A
(en )
1909-04-16
Device for the automatic closing of a smoke exhaust flap
CH77969A
(en )
1918-06-17
Device for the automatic opening and closing of a valve
CH59838A
(en )
1913-06-02
Device for opening and closing skylight windows
CH52237A
(en )
1911-11-01
Device for opening and closing shutters
FR401425A
(en )
1909-08-28
Automatic shut-off device for gas lines
AT57801B
(en )
1913-02-25
Device for displaying flammable gases.
FR447446A
(en )
1913-01-04
Pneumatically operated gas nozzle
CH59489A
(en )
1913-05-16
Device for opening and closing the valves on all types of explosion-proof four-stroke engines
CH67068A
(en )
1914-11-02
Closing device for jet pipe mouthpieces, taps and the like
CH71864A
(en )
1916-03-01
Closing device for jet pipe mouthpieces, taps and the like