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Expired
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Heinrich Perrot
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Individual
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Individual
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Publication of GB190411220ApublicationCriticalpatent/GB190411220A/en
11,220. Perrot, H. May 16. Ventilating; felt hats; helmets; straw hats; caps. -Hat bodies of felt, straw, and the like, and caps, are provided with projections 2 at the base which are covered on the outside by a band 5 but, on the inside, are only partly covered by a band 4 which leaves ventilating-passages 3 communicating over the top of the band 4 with the interior of the hat.
GB190411220D1904-05-161904-05-16Improvements in and relating to the Ventilating of Hats
ExpiredGB190411220A
(en)