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AU109462B2 - Improvements in or relating to pressure wave pickup systems - Google Patents

Improvements in or relating to pressure wave pickup systems

Info

Publication number
AU109462B2
AU109462B2 AU5709/38A AU570938A AU109462B2 AU 109462 B2 AU109462 B2 AU 109462B2 AU 5709/38 A AU5709/38 A AU 5709/38A AU 570938 A AU570938 A AU 570938A AU 109462 B2 AU109462 B2 AU 109462B2
Authority
AU
Australia
Prior art keywords
relating
pressure wave
pickup systems
wave pickup
systems
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
AU5709/38A
Other versions
AU570938A (en
Inventor
Washburn Kellogg Edward
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 AU570938A publication Critical patent/AU570938A/en
Publication of AU109462B2 publication Critical patent/AU109462B2/en
Expired legal-status Critical Current

Links

AU5709/38A 1938-12-29 Improvements in or relating to pressure wave pickup systems Expired AU109462B2 (en)

Publications (2)

Publication Number Publication Date
AU570938A AU570938A (en) 1940-01-11
AU109462B2 true AU109462B2 (en) 1940-01-11

Family

ID=

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