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: broken link (P371): https://worldwide.espacenet.com/patent/search/family/010368359/publication/GB394325A?q=pn%3DGB394325A, #quickstatements; #temporary_batch_1785920437739) | ||
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Latest revision as of 09:00, 5 August 2026
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