GB102680A - Improvements in Telephone Systems. - Google Patents

Improvements in Telephone Systems.

Info

Publication number
GB102680A
GB102680A GB649116A GB649116A GB102680A GB 102680 A GB102680 A GB 102680A GB 649116 A GB649116 A GB 649116A GB 649116 A GB649116 A GB 649116A GB 102680 A GB102680 A GB 102680A
Authority
GB
United Kingdom
Prior art keywords
telephone systems
telephone
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
GB649116A
Inventor
Ernest Alexander Laidlaw
William Herbert Grinsted
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB649116A priority Critical patent/GB102680A/en
Publication of GB102680A publication Critical patent/GB102680A/en
Expired legal-status Critical Current

Links

GB649116A 1916-05-05 1916-05-05 Improvements in Telephone Systems. Expired GB102680A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB649116A GB102680A (en) 1916-05-05 1916-05-05 Improvements in Telephone Systems.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB649116A GB102680A (en) 1916-05-05 1916-05-05 Improvements in Telephone Systems.

Publications (1)

Publication Number Publication Date
GB102680A true GB102680A (en) 1916-12-21

Family

ID=32246052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB649116A Expired GB102680A (en) 1916-05-05 1916-05-05 Improvements in Telephone Systems.

Country Status (1)

Country Link
GB (1) GB102680A (en)

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