GB191322850A - Improved Circuit Arrangements for Automatic Telephone Systems. - Google Patents

Improved Circuit Arrangements for Automatic Telephone Systems.

Info

Publication number
GB191322850A
GB191322850A GB191322850DA GB191322850A GB 191322850 A GB191322850 A GB 191322850A GB 191322850D A GB191322850D A GB 191322850DA GB 191322850 A GB191322850 A GB 191322850A
Authority
GB
United Kingdom
Prior art keywords
telephone systems
circuit arrangements
automatic telephone
improved circuit
improved
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
Priority claimed from GB191218498D external-priority patent/GB191218498A/en
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of GB191322850A publication Critical patent/GB191322850A/en
Expired legal-status Critical Current

Links

GB191322850D 1912-08-12 1913-10-09 Improved Circuit Arrangements for Automatic Telephone Systems. Expired GB191322850A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB191218498D GB191218498A (en) 1911-08-14 1912-08-12 Improved Circuit Arrangements for Automatic Telephone Systems.
DE191322850X 1912-10-11

Publications (1)

Publication Number Publication Date
GB191322850A true GB191322850A (en) 1914-06-18

Family

ID=35253635

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191322850D Expired GB191322850A (en) 1912-08-12 1913-10-09 Improved Circuit Arrangements for Automatic Telephone Systems.

Country Status (1)

Country Link
GB (1) GB191322850A (en)

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