Patents in the B26B21/56 category
Patent DE607187
Invention Dünne, biegsame, mit Auspressungen versehene Rasierklinge
Filed Thursday, 3rd July 1930
Published Thursday, 6th December 1934
Inventor Adolf Lübbertsmeier
Language German
1936 — Mulcuto DE Blade with two different Edges
Patent DE640543
Invention Mit einer Kennmarke für die Einspannlage der Schneiden versehene mehrschneidige Rasierklinge
Filed Tuesday, 6th November 1934
Published Thursday, 17th December 1936
Inventor Paul Müller
Language English
Patent DE739561
Invention Rasierklinge
Filed Sunday, 27th April 1941
Published Thursday, 12th August 1943
Inventor Wilhelm Müller
Language German
Patent GB381391
Invention Improvements in Safety Razor Blades
Filed Tuesday, 1st December 1931
Published Thursday, 6th October 1932
Inventor Adolf Lübbertsmeier
Language English
1936 — Corrugated Single Edge Blade
Patent GB445385
Invention Improvements in or relating to Blades for Safety Razors
Filed Thursday, 7th February 1935
Published Wednesday, 8th April 1936
Inventor Bernard O'Neill
Owner Ever-Ready Razor Products Limited
Language English
Other countries US2108267
1890 — Straight Razor with Soldered Blade
Patent US443773
Invention Razor
Filed Friday, 3rd October 1890
Published Tuesday, 30th December 1890
Inventor Christian Friedrich Laufer
Language English
1909 — Curved Square Blade With Safe Corners
Patent US910487
Invention Razor-Blade
Filed Friday, 3rd January 1908
Published Tuesday, 26th January 1909
Inventor Edward E. Bennett
Language English
1912 — Blade for Mark Cross Razor
Patent US1047617
Invention Blade for Safety-Razor
Filed Tuesday, 1st October 1912
Published Tuesday, 17th December 1912
Inventor Leonidas H. Cress
Owner Federal Tool Company
Language English
Patent US1123371
Invention Razor-Blade
Filed Thursday, 28th March 1912
Published Tuesday, 5th January 1915
Inventor Alfred W. Proctor
Owner Gillette Safety Razor Company
Language English
Patent US1499698
Invention Safety-Razor Blade
Filed Thursday, 9th March 1922
Published Tuesday, 1st July 1924
Inventor Carl Schoenert
Language English
1935 — Shock absorbing GEM Razor Blade
Patent US2019122
Invention Razor Blade
Filed Saturday, 29th November 1930
Published Tuesday, 29th October 1935
Inventor Stephen J. Duritza
Owner American Safety Razor Corporation
Language English
Patent US2108267
Invention Blade for Safety Razors
Filed Wednesday, 21st August 1935
Published Tuesday, 15th February 1938
Inventor Bernard O'Neill
Owner American Safety Razor Corporation
Language English
Other countries GB445385