AU390137A - Improvement in optical systems for use in sound recording or reproducing systems - Google Patents

Improvement in optical systems for use in sound recording or reproducing systems

Info

Publication number
AU390137A
AU390137A AU3901/37A AU390137A AU390137A AU 390137 A AU390137 A AU 390137A AU 3901/37 A AU3901/37 A AU 3901/37A AU 390137 A AU390137 A AU 390137A AU 390137 A AU390137 A AU 390137A
Authority
AU
Australia
Prior art keywords
systems
improvement
sound recording
reproducing
optical 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
AU3901/37A
Other versions
AU104615B2 (en
Inventor
U. SA John Henry McLeod' and Fred Early Altman. Hew York
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.)
Kodak Australasia Pty Ltd
Original Assignee
Kodak Australasia Pty Ltd
Filing date
Publication date
Application filed by Kodak Australasia Pty Ltd filed Critical Kodak Australasia Pty Ltd
Application granted granted Critical
Publication of AU104615B2 publication Critical patent/AU104615B2/en
Publication of AU390137A publication Critical patent/AU390137A/en
Expired legal-status Critical Current

Links

AU3901/37A 1937-09-09 Improvement in optical systems for use in sound recording or reproducing systems Expired AU104615B2 (en)

Publications (2)

Publication Number Publication Date
AU104615B2 AU104615B2 (en) 1938-08-04
AU390137A true AU390137A (en) 1938-08-04

Family

ID=

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