AU43536A - Improvements in or relating to microphones - Google Patents

Improvements in or relating to microphones

Info

Publication number
AU43536A
AU43536A AU435/36A AU43536A AU43536A AU 43536 A AU43536 A AU 43536A AU 435/36 A AU435/36 A AU 435/36A AU 43536 A AU43536 A AU 43536A AU 43536 A AU43536 A AU 43536A
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
AU435/36A
Inventor
Ethelbert Goodwin 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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Filing date
Publication date
Application filed by Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Publication of AU43536A publication Critical patent/AU43536A/en
Expired legal-status Critical Current

Links

AU435/36A 1936-02-05 Improvements in or relating to microphones Expired AU43536A (en)

Publications (1)

Publication Number Publication Date
AU43536A true AU43536A (en) 1936-12-10

Family

ID=

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