Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Harris Lake Henry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AKOUPHONE MANUFACTURING CO
Original Assignee
AKOUPHONE MANUFACTURING CO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AKOUPHONE MANUFACTURING COfiledCriticalAKOUPHONE MANUFACTURING CO
Application grantedgrantedCritical
Publication of GB190209956ApublicationCriticalpatent/GB190209956A/en
9956. Lake, H. H., [Akouphone Manufacturing Co.]. April 30. Telephones.-A magneto telephone is constructed with the case A screw-threaded to receive the adjustable cap F and the locking-ring E. The cap F has a cover plate G and contains the diaphragm H held between paper washers K, L. M is the diaphragm securing-ring. Plug sockets are provided for the connections.
GB190209956D1902-04-301902-04-30Improvements relating to Telephone Receivers, and the like.
ExpiredGB190209956A
(en)