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William Edward Lake
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Publication of GB191122549ApublicationCriticalpatent/GB191122549A/en
22,549. Lake, W. E., [Aeolian Co.]. Oct. 12. Drawings to Specification. Combined with phonographs &c. - A talking- machine when used in combination with an automatic musical instrument such as a pianoplayer has the record provided with an index mark at the beginning of the leading-in groove so that the music sheet of the piano-player &c. can be adjusted to commence at the required time.
GB191122549D1911-10-121911-10-12Improvements in Gramophone and other Talking Machine Records.
ExpiredGB191122549A
(en)