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Leopold Anton Schwarzhuber
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Individual
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Individual
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Publication of GB190507099ApublicationCriticalpatent/GB190507099A/en
7099. Schwarzhuber, L. A. April 4. Hinges.-A bow 4 use in substitution for an ordinary door chain is pivoted to the door frame by means of the pin 6, which passes through the lugs 15 on the plate 20 and through the forked end of the bow. A spiral spring is placed round the pin within the fork, and bears against a projection on the bow.
GB190507099D1905-04-041905-04-04An Improved Fastening and Lock for Doors.
ExpiredGB190507099A
(en)