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Expired
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Thomas Richardson
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Individual
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Individual
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Publication of GB190519827ApublicationCriticalpatent/GB190519827A/en
Rotary Switch, Piano Key Switch, And Lever Switch
(AREA)
Abstract
19,827. Richardson, T. Oct. 2, Knockers. - A fingerring is provided with a knob or projection A to serve as a door knocker. The projecting part may be screwed into the ring or may be integral with it.
GB190519827D1905-10-021905-10-02Ring Door Knocker to Wear on the Finger.
ExpiredGB190519827A
(en)