CA505833A - Loud-speaking telephone arrangements - Google Patents

Loud-speaking telephone arrangements

Info

Publication number
CA505833A
CA505833A CA505833A CA505833DA CA505833A CA 505833 A CA505833 A CA 505833A CA 505833 A CA505833 A CA 505833A CA 505833D A CA505833D A CA 505833DA CA 505833 A CA505833 A CA 505833A
Authority
CA
Canada
Prior art keywords
loud
speaking telephone
telephone arrangements
arrangements
speaking
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
CA505833A
Other languages
French (fr)
Inventor
E. Latimer Kenneth
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.)
Philips Lamps Ltd
Original Assignee
Philips Lamps Ltd
Publication date
Application granted granted Critical
Publication of CA505833A publication Critical patent/CA505833A/en
Expired legal-status Critical Current

Links

CA505833A Loud-speaking telephone arrangements Expired CA505833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA505833T

Publications (1)

Publication Number Publication Date
CA505833A true CA505833A (en) 1954-09-14

Family

ID=35651756

Family Applications (1)

Application Number Title Priority Date Filing Date
CA505833A Expired CA505833A (en) Loud-speaking telephone arrangements

Country Status (1)

Country Link
CA (1) CA505833A (en)

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