Difference between revisions of "Patent for Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems (Q38982)"
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(Created claim: Publication date (P40): 14 June 1933) | (Created claim: mentions (P78): stereo sound (Q38983)) | ||
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| Property / mentions: stereo sound / rank | |||
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Latest revision as of 09:48, 2 July 2025
patent for stereo concept and sterio (record) recording
- GB394325A
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Patent for Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems | patent for stereo concept and sterio (record) recording |
|
Statements
14 June 1933
0 references