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Expired
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Daniel Francis Martin
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Individual
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Individual
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Publication of GB190328370ApublicationCriticalpatent/GB190328370A/en
28,370. Martin, D. F. Dec. 24. Rings.-Metal rings are formed in two parts a, b hinged together at c. One part b is screw-threaded at one end, the other part a has a threaded nut e rotatably attached at its end. The ring is closed by inserting the screw d into the nut e.
GB190328370D1903-12-241903-12-24A New or Improved Metal Ring
ExpiredGB190328370A
(en)