GB111991A - Improvements in Machine Switching Telephone Systems. - Google Patents

Improvements in Machine Switching Telephone Systems.

Info

Publication number
GB111991A
GB111991A GB1205417A GB1205417A GB111991A GB 111991 A GB111991 A GB 111991A GB 1205417 A GB1205417 A GB 1205417A GB 1205417 A GB1205417 A GB 1205417A GB 111991 A GB111991 A GB 111991A
Authority
GB
United Kingdom
Prior art keywords
telephone systems
machine switching
switching telephone
machine
systems
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
GB1205417A
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.)
Western Electric Co Ltd Great Britain
AT&T Corp
Original Assignee
Western Electric Co Ltd Great Britain
Western Electric Co Inc
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 Western Electric Co Ltd Great Britain, Western Electric Co Inc filed Critical Western Electric Co Ltd Great Britain
Priority to GB1205417A priority Critical patent/GB111991A/en
Publication of GB111991A publication Critical patent/GB111991A/en
Expired legal-status Critical Current

Links

GB1205417A 1917-08-22 1917-08-22 Improvements in Machine Switching Telephone Systems. Expired GB111991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1205417A GB111991A (en) 1917-08-22 1917-08-22 Improvements in Machine Switching Telephone Systems.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1205417A GB111991A (en) 1917-08-22 1917-08-22 Improvements in Machine Switching Telephone Systems.

Publications (1)

Publication Number Publication Date
GB111991A true GB111991A (en) 1917-12-20

Family

ID=32248615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1205417A Expired GB111991A (en) 1917-08-22 1917-08-22 Improvements in Machine Switching Telephone Systems.

Country Status (1)

Country Link
GB (1) GB111991A (en)

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