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Carl Molt
Carl Bozler
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Publication of GB190426544ApublicationCriticalpatent/GB190426544A/en
26,544. Molt, C., and Bozler, C. Dec. 6. Phonographs.-A phonograph trumpet is made in two or more sections a, a<1> which are fastened together as at b by screw threads impressed on the portions of the trumpet by pressure.
GB190426544D1904-12-061904-12-06Improvements in and relating to Phonograph Trumpets.
ExpiredGB190426544A
(en)