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Over the years, we've been able to collect a fair amount of information about the Solo-Carola player system. We believe that the article immediately below, written by Jim Williamson, appeared in an AMICA Bulletin. Initially, it was believed that the Solo-Carola system was made by Bluethner, UK, in the early 1930s. However, as you will see below the first article, the system was made by the Cable Co, with Patents going back as far as 1908.

Below are links to all of the Technical Information that is available at this time. This page was last revised on October 11, 2021 by John A Tuttle.
Patent US899469 (Sept 22, 1908)

Patent US899470 (Sept 22, 1908)

Patent US1183739 (May 16, 1916)

Patent US1195477 (Aug 22, 1916)

Patent US1228029 (May 29, 1917)

Patent US1265792 (May 14, 1918)

Scientific American (article on May 20, 1916)

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About Solo-Carola Rolls

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