The Talking Machine Forum — For All Antique Phonographs & Recordings • 915936 Inverted Vertical Record Groove

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915936 Inverted Vertical Record Groove

Posted: Sat Feb 26, 2022 6:56 am

by JohnM

Victor held a vertical patent!

Re: 915936 Inverted Vertical Record Groove

Posted: Fri Mar 04, 2022 2:39 pm

by pallophotophone

The inventor of the Bipoint stylus ? Used to play stampers today.