Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
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POLYPHON MUSIKWERKE AKTIEN GES
Original Assignee
POLYPHON MUSIKWERKE AKTIEN GES
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Application filed by POLYPHON MUSIKWERKE AKTIEN GESfiledCriticalPOLYPHON MUSIKWERKE AKTIEN GES
Application grantedgrantedCritical
Publication of GB191009607ApublicationCriticalpatent/GB191009607A/en
9607. Polyphon - Musikwerke Akt.- Ges. Jan. 22, [Convention date]. Trumpets, arranging.-An octagonal trumpet is arranged in a casing with its sides C, D, E, F oblique and the alternate sides G, H, I, K vertical. Perforations N may be provided in the vertical sides. The driving-mechanism is attached to a cross-bar B situated in the mouth of the trumpet.
GB191009607D1910-01-221910-04-20Improvements in or relating to Talking and Sound Reproducing Machines.
ExpiredGB191009607A
(en)