|
GB472901A
|
|
Improvements in or relating to telephone instruments
|
|
GB448894A
|
|
Improvements in or relating to telephone instruments
|
|
GB448825A
|
|
Improvements in or relating to apparatus for the production, reception, conduction, transmission, reproduction and/or location of sound
|
|
GB448864A
|
|
Improvements in or relating to apparatus for the production, reception, conduction, transmission, reproduction, and/or location of sound
|
|
GB408221A
|
|
Improvements in or relating to telephone transmitters for use in telephoning, public address systems, and sound recording
|
|
GB338892A
|
|
Improvements in or relating to mouthpiece arrangements for use with telephones and the like
|
|
GB331829A
|
|
Improvements in or relating to apparatus for use with telephones and the like
|
|
GB303848A
|
|
Improvements in handset telephones and the like
|
|
GB284406A
|
|
Improvements in mountings for mouthpieces for telephones and the like
|
|
GB289339A
|
|
Improvements relating to mountings for receivers and transmitting devices for use with telephones and the like
|
|
GB285780A
|
|
Improvements in or relating to arrangements for supporting devices in any position in which they may be put
|
|
GB281801A
|
|
Improvements in speaking tube attachments for telephones and like instruments
|
|
GB274525A
|
|
A stand and support for telephone and telephone accessories
|
