AU108767B2 - Improvements in or relating to microphones - Google Patents

Improvements in or relating to microphones

Info

Publication number
AU108767B2
AU108767B2 AU4496/38A AU449638A AU108767B2 AU 108767 B2 AU108767 B2 AU 108767B2 AU 4496/38 A AU4496/38 A AU 4496/38A AU 449638 A AU449638 A AU 449638A AU 108767 B2 AU108767 B2 AU 108767B2
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
AU4496/38A
Other versions
AU449638A (en
Inventor
Baldwin Banks George
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Filing date
Publication date
Application filed by Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of AU449638A publication Critical patent/AU449638A/en
Publication of AU108767B2 publication Critical patent/AU108767B2/en
Expired legal-status Critical Current

Links

AU4496/38A 1938-10-13 Improvements in or relating to microphones Expired AU108767B2 (en)

Publications (2)

Publication Number Publication Date
AU449638A AU449638A (en) 1939-10-26
AU108767B2 true AU108767B2 (en) 1939-10-26

Family

ID=

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