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- Google Patents
CA627635A - Telephone instruments
- Google Patents
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
CA627635A
Inventor
Sinclair William
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.)
Ericsson Telephones Ltd
Original Assignee
Ericsson Telephones Ltd
Publication date
Application grantedgrantedCritical
Publication of CA627635ApublicationCriticalpatent/CA627635A/en