|
GB183444A
|
|
Automatic electric switching device
|
|
GB165730A
|
|
Electric bell
|
|
GB160141A
|
|
Improvements in electric bells and the like
|
|
DE356282C
|
|
Gas- and watertight electrical bell mechanism with movable solenoid core bell
|
|
DE367321C
|
|
Electric display device
|
|
GB161548A
|
|
Improvements in electromagnetically operated sounding horns and the like
|
|
GB150350A
|
|
Improvements in electrically actuated gongs and like sound producing apparatus
|
|
GB191408339A
|
|
An Arrangement for Imparting a Continuous Movement to Rolling or Sliding Bodies.
|
|
GB191408338A
|
|
An Arrangement for Effecting a Continuous Automatic Movement of Rolling or Sliding Bodies.
|
|
GB191406165A
|
|
Improvements in Electro-magnetic Devices for Maintaining in Motion Rolling Bodies.
|
