GB191307130A - Improvements in Telephone Circuits. - Google Patents

Improvements in Telephone Circuits.

Info

Publication number
GB191307130A
GB191307130A GB191307130DA GB191307130A GB 191307130 A GB191307130 A GB 191307130A GB 191307130D A GB191307130D A GB 191307130DA GB 191307130 A GB191307130 A GB 191307130A
Authority
GB
United Kingdom
Prior art keywords
telephone circuits
telephone
circuits
Prior art date
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
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of GB191307130A publication Critical patent/GB191307130A/en
Expired legal-status Critical Current

Links

GB191307130D 1912-03-23 1913-03-25 Improvements in Telephone Circuits. Expired GB191307130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE191307130X 1912-03-23

Publications (1)

Publication Number Publication Date
GB191307130A true GB191307130A (en) 1913-10-16

Family

ID=35253594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191307130D Expired GB191307130A (en) 1912-03-23 1913-03-25 Improvements in Telephone Circuits.

Country Status (1)

Country Link
GB (1) GB191307130A (en)

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