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
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NEW PHONOPORE TELEPHONE COMPAN
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NEW PHONOPORE TELEPHONE COMPAN
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Application filed by NEW PHONOPORE TELEPHONE COMPANfiledCriticalNEW PHONOPORE TELEPHONE COMPAN
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Publication of GB190110623ApublicationCriticalpatent/GB190110623A/en
10,623. Nicholson, A. H., and New Phonopore Telephone Co. May 22. Telephones.-Relates to the arrangement of subscribers' telephone apparatus when a phonopore and a bell in a relay circuit are employed. The bell relay a is connected between the earth e and line l through the upper contact f of the calling- key k. One secondary s' of the phonopore is connected to line l, and the other s' through the receiver r to earth e. The transmitter t is connected in a local circuit with the primary p of the phonopore and part of the battery b when contact is made at c, the receiver being off the hook.
GB190110623D1901-05-221901-05-22An Improvement in Telephone Apparatus.
ExpiredGB190110623A
(en)