GB190206484A - Improvements in or relating to Signalling Devices for Telephone-systems - Google Patents

Improvements in or relating to Signalling Devices for Telephone-systems

Info

Publication number
GB190206484A
GB190206484A GB190206484DA GB190206484A GB 190206484 A GB190206484 A GB 190206484A GB 190206484D A GB190206484D A GB 190206484DA GB 190206484 A GB190206484 A GB 190206484A
Authority
GB
United Kingdom
Prior art keywords
telephone
relating
systems
signalling devices
signalling
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
Inventor
Henrik Thore Cedergren
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
Application granted granted Critical
Publication of GB190206484A publication Critical patent/GB190206484A/en
Expired legal-status Critical Current

Links

GB190206484D 1902-03-17 1902-03-17 Improvements in or relating to Signalling Devices for Telephone-systems Expired GB190206484A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190206484T 1902-03-17

Publications (1)

Publication Number Publication Date
GB190206484A true GB190206484A (en) 1902-10-09

Family

ID=43802747

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190206484D Expired GB190206484A (en) 1902-03-17 1902-03-17 Improvements in or relating to Signalling Devices for Telephone-systems

Country Status (1)

Country Link
GB (1) GB190206484A (en)

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