AU459056B2 - Switching device for telephone instruments adapted to alternately be used as lowspeaking and loudspeaking telephones - Google Patents

Switching device for telephone instruments adapted to alternately be used as lowspeaking and loudspeaking telephones

Info

Publication number
AU459056B2
AU459056B2 AU25622/71A AU2562271A AU459056B2 AU 459056 B2 AU459056 B2 AU 459056B2 AU 25622/71 A AU25622/71 A AU 25622/71A AU 2562271 A AU2562271 A AU 2562271A AU 459056 B2 AU459056 B2 AU 459056B2
Authority
AU
Australia
Prior art keywords
lowspeaking
alternately
switching device
telephone instruments
instruments adapted
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
AU25622/71A
Other versions
AU2562271A (en
Inventor
Hugo Blomberg Knut
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 AU2562271A publication Critical patent/AU2562271A/en
Publication of AU459056B2 publication Critical patent/AU459056B2/en
Expired legal-status Critical Current

Links

AU25622/71A 1970-02-18 1971-02-18 Switching device for telephone instruments adapted to alternately be used as lowspeaking and loudspeaking telephones Expired AU459056B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SESE2086/70 1970-02-18

Publications (2)

Publication Number Publication Date
AU2562271A AU2562271A (en) 1972-08-24
AU459056B2 true AU459056B2 (en) 1972-08-24

Family

ID=

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