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 a new Item: Patent for Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems, patent for stereo concept and sterio (record) recording) | (Added [en] alias: GB394325A) | ||
| aliases / en / 0 | aliases / en / 0 | ||
| + | GB394325A | ||
Revision as of 09:36, 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 |
|