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
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Heinrich Wachwitz
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Individual
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Individual
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Publication of GB191401122ApublicationCriticalpatent/GB191401122A/en
G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
G10C3/00—Details or accessories
G10C3/06—Resonating means, e.g. soundboards or resonant strings; Fastenings thereof
Abstract
1122. Wachwitz, H. Feb. 3, 1913, [Convention date]. Sound magnifying and directing appliances.- The soundboards of musical instruments and the horns of phonographs &c. are made of aluminium coated on one or both sides with one or more layers of another metal of high specific gravity, such as gold, silver, cobalt, nickel, or copper, which may be deposited electrolytically or otherwise.
GB191401122D1913-02-031914-01-15Improvements in Musical Instruments and Talking Machines.
ExpiredGB191401122A
(en)