bn:22549748n
Noun Named Entity
Categories: 1932 in England, 1933 in science, 1932 in science, Sound recording technology, 1934 in science
EN
British patent 394325  United Kingdom patent 394325  UK patent number 394,325
EN
The United Kingdom patent 394325 'Improvements in and relating to Sound-transmission, Sound-recording and Sound-reproducing Systems' is a fundamental work on stereophonic sound, written by Alan Blumlein in 1931 and published in 1933. Wikipedia
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EN
The United Kingdom patent 394325 'Improvements in and relating to Sound-transmission, Sound-recording and Sound-reproducing Systems' is a fundamental work on stereophonic sound, written by Alan Blumlein in 1931 and published in 1933. Wikipedia
Seminal work on stereophonic sound by Alam Blumlein Wikidata
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