AU553727A - Improvements in acoustic devices - Google Patents

Improvements in acoustic devices

Info

Publication number
AU553727A
AU553727A AU5537/27A AU553727A AU553727A AU 553727 A AU553727 A AU 553727A AU 5537/27 A AU5537/27 A AU 5537/27A AU 553727 A AU553727 A AU 553727A AU 553727 A AU553727 A AU 553727A
Authority
AU
Australia
Prior art keywords
acoustic devices
acoustic
devices
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
AU5537/27A
Inventor
Hutchison Smythe Edwin
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 AU553727A publication Critical patent/AU553727A/en
Expired legal-status Critical Current

Links

AU5537/27A 1927-01-13 Improvements in acoustic devices Expired AU553727A (en)

Publications (1)

Publication Number Publication Date
AU553727A true AU553727A (en) 1927-02-25

Family

ID=

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