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Expired
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Joseph Ephraim
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Individual
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Individual
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Publication of GB189707200ApublicationCriticalpatent/GB189707200A/en
7200. Ephraim, J. March 19. Drain and sewer cleansing brushes.-A circular brush is secured between collars g on the end of the operating-handle, to which is also secured a pointed head carrying a helical blade.