AU1721534A - Improvements in or relating to microphones - Google Patents

Improvements in or relating to microphones

Info

Publication number
AU1721534A
AU1721534A AU17215/34A AU1721534A AU1721534A AU 1721534 A AU1721534 A AU 1721534A AU 17215/34 A AU17215/34 A AU 17215/34A AU 1721534 A AU1721534 A AU 1721534A AU 1721534 A AU1721534 A AU 1721534A
Authority
AU
Australia
Prior art keywords
microphones
relating
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
AU17215/34A
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.)
Nokia Services Ltd
Original Assignee
Standard Telephone and Cables Pty Ltd
Filing date
Publication date
Application filed by Standard Telephone and Cables Pty Ltd filed Critical Standard Telephone and Cables Pty Ltd
Publication of AU1721534A publication Critical patent/AU1721534A/en
Expired legal-status Critical Current

Links

AU17215/34A 1934-04-19 Improvements in or relating to microphones Expired AU1721534A (en)

Publications (1)

Publication Number Publication Date
AU1721534A true AU1721534A (en) 1935-05-02

Family

ID=

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