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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Henry Bleckly Bourne
Walter Fox Bourne
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Individual
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Individual
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Publication of GB190900710ApublicationCriticalpatent/GB190900710A/en
710. Bourne, H. B., and Bourne, W. F. Jan. 11. Cases, clock.-Cases are made of ebonite containing fine particles of a substance which renders it conductive, and are electroplated with copper, silver, &c. According to the Provisional Specification, the conductive substance may be replaced by barium sulphate.
GB190900710D1909-01-111909-01-11Improvements in or relating to Composite Materials for use as Substitutes for Metal, Wood, and other Hard Substances.
ExpiredGB190900710A
(en)