|
GB318857A
|
|
Improvements in or relating to the speed regulation of alternating current induction meters
|
|
GB299680A
|
|
Improvements in or relating to rotating field magnets for turbo-generators
|
|
GB271834A
|
|
Improvements in or relating to rotating field magnets for turbo-generators
|
|
GB269130A
|
|
Improvements in or relating to rotating field magnets for turbo-generators
|
|
GB178411A
|
|
A system of pole-changing for polyphase induction motors
|
|
GB173527A
|
|
A system of pole changing for polyphase induction motors
|
|
GB173518A
|
|
Improved process for setting rotating electric meters
|
|
GB161973A
|
|
A system of pole-changing for polyphase induction motors
|
