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AU157447B2 - Improvements in and relating to combined optical and magnetic sound translating apparatus - Google Patents
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AU157447B2 - Improvements in and relating to combined optical and magnetic sound translating apparatus - Google Patents

Improvements in and relating to combined optical and magnetic sound translating apparatus

Info

Publication number
AU157447B2
AU157447B2 AU10037/52A AU1003752A AU157447B2 AU 157447 B2 AU157447 B2 AU 157447B2 AU 10037/52 A AU10037/52 A AU 10037/52A AU 1003752 A AU1003752 A AU 1003752A AU 157447 B2 AU157447 B2 AU 157447B2
Authority
AU
Australia
Prior art keywords
relating
combined optical
magnetic sound
translating apparatus
sound translating
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
AU10037/52A
Other versions
AU1003752A (en
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.)
Bell and Howell Co
Original Assignee
Bell and Howell Co
Filing date
Publication date
Application filed by Bell and Howell Co filed Critical Bell and Howell Co
Application granted granted Critical
Publication of AU1003752A publication Critical patent/AU1003752A/en
Publication of AU157447B2 publication Critical patent/AU157447B2/en
Expired legal-status Critical Current

Links

AU10037/52A 1952-05-16 Improvements in and relating to combined optical and magnetic sound translating apparatus Expired AU157447B2 (en)

Publications (2)

Publication Number Publication Date
AU1003752A AU1003752A (en) 1952-07-17
AU157447B2 true AU157447B2 (en) 1952-07-17

Family

ID=

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