|
GB125084A
|
|
Improvements in or relating to the Application of Oscillographs and other Galvanometers to Radio Telegraphy.
|
|
US1218237A
|
|
Method and apparatus for determining the direction of a hertzian light-house.
|
|
US1208279A
|
|
Photometer.
|
|
GB191308504A
|
|
Improvements in and relating to Rapid Photographic Records of Curves of Oscillographs, Rheographs and the lALEXANDERike.
|
|
GB191228297A
|
|
Improvements in Catoptric Light Apparatus.
|
|
GB191214741A
|
|
Improved Electrodes for Arc Lamps.
|
|
GB191205147A
|
|
Improvements relating to Bells for use in Submarine Signalling.
|
|
GB191112024A
|
|
Improvements in the Manufacture of Electrodes for Electric Arc Lamps.
|
|
GB191105502A
|
|
Improved Automatic Arc-lamp for Light-projections.
|
|
GB191027989A
|
|
Improvements in or relating to Electric Arc-lamps.
|
|
GB191022576A
|
|
Improvements in and relating to Rapid Photographic Records of Curves of Oscillographs, Rheographs and the like.
|
|
GB190604677A
|
|
Improvements in or relating to Electric Arc-lamps.
|
|
GB190524502A
|
|
Improvements in or relating to Smoke Escape Devices for Electric Arc-lamps
|
|
GB190519712A
|
|
Improvements in or relating to Electric Ar-lamps.
|
|
GB190516357A
|
|
Improvements in Arc-lamps.
|
|
US824682A
|
|
Method of practicing wireless telegraphy.
|
|
GB190419232A
|
|
Improvements in or relating to Electric Arc-lamps.
|
|
GB190401676A
|
|
Improvements in Processes for Manufacturing Electrodes for Arc Lamps.
|
|
US764105A
|
|
Electric-arc lamp.
|
|
US783992A
|
|
Wireless telegraphy by electric waves.
|
