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| -safety Razors Irving Gillette type U.S.A. 1926 Trapezoidal The Irving Safety Razor Co., Torrington, Connecticut TM first used 1 Sep 1926. TM filed 11 Nov 1936. American patent No. 1581694 20 Apr 1926 filed 31 Mar 1925. Irving Smith, Winsted, Connecticut | ||||
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