DK43645C
(en )
1931-01-26
Double-edged Knife for Meat Choppers with Interchangeable Blades.
FR694520A
(en )
1930-12-04
Knife
FR707482A
(en )
1931-07-08
Skinning knife, with adjustable and interchangeable blade
ES119212A1
(en )
1930-09-01
Blade improvements for razors.
ES117405A1
(en )
1930-04-16
Improvement in double-edged blades for cutting meat with replaceable blades.
ES122348A1
(en )
1931-05-01
Perfections on razor blades called safety knives.
DK45295C
(en )
1932-02-22
Shaver with accompanying razor blade.
NL27483C
(en )
1932-08-15
Safety razor and blade for that
ES1552Y
(en )
1933-09-16
Replaceable blades for razors.
DK39644C
(en )
1928-12-27
Knife harrow with adjustable knives.
DK43999C
(en )
1931-04-13
Razor blade.
ES232Y
(en )
1931-05-01
Siluetable sample container for razor blades.
DK50027C
(en )
1935-03-18
Apparatus for grinding double-edged razor blades.
FR692189A
(en )
1930-10-31
Double-edged meat mincer and interchangeable blades
ES121376A3
(en )
1931-02-16
A device, consisting of a removable multiple knife, with razor blades.
ES651Y
(en )
1932-03-01
Device for sharpening razor blades.
ES124661A3
(en )
1931-12-16
Device for sharpening razor blades.
ES127980A1
(en )
1932-12-16
A system of knives for skinning cattle, with adjustable and interchangeable blade.
DK52773C
(en )
1937-03-01
Shaver for Blades with one-sided Egg.
ES125695A1
(en )
1932-03-16
Apparatus for sharpening razor blades.
ES523Y
(en )
1931-12-01
Device for razor blades.
DK41153C
(en )
1929-11-25
Device for choppers with removable blade.
CA259723A
(en )
1926-04-13
Knife with separable blades
ES445Y
(en )
1931-10-16
Protector for razor blades.
CA8899S
(en )
1930-09-16
Sarety razor blade