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George Lyman Coleman
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Individual
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Publication of GB190629766ApublicationCriticalpatent/GB190629766A/en
29,766. Coleman, G. L. Jan. 29, [date appliedfor under Patents Act, 1901]. Gramophones.-A gramophone sound-box consists of members 1, 2 adapted to slide one over the other and having inner faces, which support resilient washers 3, 3<1> of triangular or other section between which is secured the diaphragm 4.
GB190629766D1906-01-291906-12-31Improvements in Gaskets for Sound Boxes.
ExpiredGB190629766A
(en)