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Hans Summa
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Individual
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Individual
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Publication of GB190612702ApublicationCriticalpatent/GB190612702A/en
12,702. Summa, H. May 31. Hair pins.-In a hairpin having crossed limbs which pass in a straight line over the point of intersection c, the ends are bent obliquely in the direction of the spring action pressing the limbs together at the crossing point. In a modification, only one of the limbs a, Fig. 8, is bent.
GB190612702D1906-05-311906-05-31Improvements relating to Hairpins.
ExpiredGB190612702A
(en)