CH56987A
(en )
1912-12-02
Device for closing drains
CH82429A
(en )
1919-10-01
Device for opening canning jars closed by air pressure and the like
CH58608A
(en )
1913-03-17
Device for opening and closing doors
CH58170A
(en )
1913-02-17
Device for opening and closing skylight windows
CH57922A
(en )
1913-02-01
Device for opening and closing skylight windows
CH53770A
(en )
1912-08-16
Closure device for vessels
CH79451A
(en )
1918-11-16
Device for locking doors and windows
CH61639A
(en )
1913-10-01
Device for opening and closing roof fans
FR14570E
(en )
1912-01-11
Closing device for various containers
FR401399A
(en )
1909-08-27
Closing device for various containers
FR439664A
(en )
1912-06-20
Closing device for windows
CH69598A
(en )
1915-07-01
Device for opening and closing skylight windows
CH60298A
(en )
1913-07-01
Device for opening and closing of step covers and seats
CH70300A
(en )
1915-09-01
Device for displaying times, especially the opening or closing time of business premises
CH59489A
(en )
1913-05-16
Device for opening and closing the valves on all types of explosion-proof four-stroke engines
CH81853A
(en )
1919-12-01
Safety and alarm device for doors
CH167691A
(en )
1934-02-28
Electrically controlled door opening and closing device for vehicles of trains operated by pressure medium.
FR432923A
(en )
1911-12-20
Safety device for doors
FR411462A
(en )
1910-06-17
Method and device for the watertight closing of the slots of the ports of the casemates
CH28493A
(en )
1904-05-15
New device for efficient emptying of vessels with only one opening
CH52237A
(en )
1911-11-01
Device for opening and closing shutters
AT57879B
(en )
1913-02-25
Device for opening and closing the lower lids of standing retorts or chambers.
FR521623A
(en )
1921-07-16
Safety device for doors
FR435586A
(en )
1912-03-05
Control device for swing wings
FR22097E
(en )
1921-05-12
Device for destroying submarines