Patents in the B26B21/50 category
Patent GB321115
Invention Improvements in or relating to Safety Razors
Filed Saturday, 12th January 1929
Published Thursday, 31st October 1929
Inventor Harry Beckham Randolph
Owner Wilkinson Sword Company Limited
Language English
1932 — Ronson “Shaves and Sharpens” Razor
Patent GB375651
Invention Improvements in or relating to Safety Razors
Filed Tuesday, 13th October 1931
Published Thursday, 30th June 1932
Inventor Louis Vincent Aronson
Owner Art Metal Works Inc.
Language English
Other countries US1826410
1932 — Ronson “Shaves and Sharpens” Razor
Patent GB383018
Invention Improvements in or relating to Safety Razors
Filed Tuesday, 13th October 1931
Published Thursday, 10th November 1932
Inventor Louis Vincent Aronson
Owner Art Metal Works Inc.
Language English
Other countries US1966425
Patent US182904
Invention Improvements in Razor-Backs
Filed Saturday, 19th August 1876
Published Tuesday, 3rd October 1876
Inventor Hiram A. Dow
Language English
Patent US316731
Invention Guard for Razor-Blades
Filed Monday, 10th March 1884
Published Tuesday, 28th April 1885
Inventors James Brady, Alfred Victor Brokhahne
Language English
Patent US373395
Invention Safety-Razor
Filed Wednesday, 16th March 1887
Published Tuesday, 15th November 1887
Inventor Henry G. Fiske
Owner Kampfe Bros.
Language English
Patent US385636
Invention Razor
Filed Thursday, 16th February 1888
Published Tuesday, 3rd July 1888
Inventor Henry B. Leach
Language English
Patent US519479
Invention Safety-Razor
Filed Tuesday, 19th December 1893
Published Tuesday, 8th May 1894
Inventor Egon Lothar Schmitz
Language English
1897 — Removable Straight Razor Back
Patent US575514
Invention Removable Back for Razors
Filed Saturday, 4th April 1896
Published Tuesday, 19th January 1897
Inventors Samuel H. Barrett, John C. Brown, Wallace Groves
Language English
Patent US614049
Invention Safety-Razor
Filed Wednesday, 18th August 1897
Published Tuesday, 8th November 1898
Inventor William Greenfield
Language English
1904 — Gaisman's first razor patent
Patent US759262
Invention Safety-Razor
Filed Monday, 6th April 1903
Published Tuesday, 10th May 1904
Inventor Henry Jacques Gaisman
Language English
Patent US764574
Invention Safety-Razor
Filed Thursday, 10th March 1904
Published Tuesday, 12th July 1904
Inventor Henry Jacques Gaisman
Language English
Patent US793410
Invention Safety-Razor
Filed Tuesday, 21st February 1905
Published Tuesday, 27th June 1905
Inventor Ernst Julius Bell
Language English
1929 — De Haven Self Sharpening Razor
Patent US1718219
Invention Razor
Filed Tuesday, 17th June 1924
Published Tuesday, 25th June 1929
Inventor Hugh De Haven
Owner De Haven Razor Corporation
Language English
1931 — Ronson “Shaves and Sharpens” Razor
Patent US1826410
Invention Combined Safety Razor and Sharpening Mechanism
Filed Monday, 16th February 1931
Published Tuesday, 6th October 1931
Inventor Louis Vincent Aronson
Owner Art Metal Works Inc.
Language English
Other countries GB375651
1932 — De Haven Self Sharpening Razor
Patent US1859554
Invention Combined Razor and Blade Sharpener
Filed Friday, 24th July 1925
Published Tuesday, 24th May 1932
Inventor Hugh De Haven
Owner De Haven Razor Corporation
Language English
1933 — Ronson “Shaves and Sharpens” Razor
Patent US1931856
Invention Combined Safety Razor and Sharpening Mechanism
Filed Saturday, 31st January 1931
Published Tuesday, 24th October 1933
Inventor Louis Vincent Aronson
Owner Art Metal Works Inc.
Language English
1934 — Ronson “Shaves and Sharpens” Razor
Patent US1966425
Invention Combined Safety Razor and Sharpening Device
Filed Friday, 24th July 1931
Published Tuesday, 17th July 1934
Inventor Louis Vincent Aronson
Owner Art Metal Works Inc.
Language English
Other countries GB383018
1936 — Self Sharp Safety Razor
Patent US2057202
Invention Self Sharpening Razor
Filed Monday, 20th May 1935
Published Tuesday, 13th October 1936
Inventor Homer A. Mead
Language English
Patent US2246368
Invention Razor
Filed Wednesday, 31st January 1940
Published Tuesday, 17th June 1941
Inventor Leopold Karl Kuhnl
Owner Magazine Repeating Razor Company
Language English
Patent US2359028
Invention Hone Type Safety Razor
Filed Thursday, 24th February 1944
Published Tuesday, 26th September 1944
Inventor James Clarence Friel
Language English