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AU628932A - Improvements in and relating to shutters for sound recording apparatus - Google Patents

Improvements in and relating to shutters for sound recording apparatus

Info

Publication number
AU628932A
AU628932A AU6289/32A AU628932A AU628932A AU 628932 A AU628932 A AU 628932A AU 6289/32 A AU6289/32 A AU 6289/32A AU 628932 A AU628932 A AU 628932A AU 628932 A AU628932 A AU 628932A
Authority
AU
Australia
Prior art keywords
shutters
relating
recording apparatus
sound recording
sound
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
AU6289/32A
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.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of AU628932A publication Critical patent/AU628932A/en
Expired legal-status Critical Current

Links

AU6289/32A 1932-02-25 Improvements in and relating to shutters for sound recording apparatus Expired AU628932A (en)

Publications (1)

Publication Number Publication Date
AU628932A true AU628932A (en) 1933-03-09

Family

ID=

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