CH4163A
(en )
1892-02-29
Locking device for the knives of pencil and slate sharpeners
CH3480A
(en )
1891-09-30
Pencil sharpener with combined sharpening surfaces
CH4378A
(en )
1892-04-30
Pocket pencil sharpener with adjustable knife
FR347196A
(en )
1905-02-27
Combination pencil holder and sharpener
CH4672A
(en )
1892-07-15
Pencil sharpener with plane-like equipment
CH10719A
(en )
1896-01-31
Advanced pencil sharpener
CH5335A
(en )
1892-11-30
Pencil sharpener with exchangeable knife held by press screw and adjusting pins
CH6859A
(en )
1893-11-30
Combined pencil sharpener and pencil protector
CH2894A
(en )
1891-04-15
Innovation in pencil sharpeners
CH5307A
(en )
1892-11-30
Convex and concave turning apparatus
DK497C
(en )
1896-04-27
Knife sharpener.
CH23773A
(en )
1902-09-15
Device for sharpening scissors and knives
CH41803A
(en )
1908-12-01
Holder for turning and planing steels
GB189314351A
(en )
1893-09-02
Improvements in and relating to Pencil Sharpeners.
CH20095A
(en )
1900-11-30
Device for sharpening pencils, chalk etc.
CH8737A
(en )
1894-12-31
Holder for turning and planing steels
CH5394A
(en )
1892-12-15
Device for simultaneous cylindrical grinding of a multitude of gemstone flakes or similar bodies
CH6732A
(en )
1893-10-14
Device for preventing straps or straps used for carrying objects from sliding down
CH12653A
(en )
1897-01-31
Protective cover with holder for holding cards etc.
CH7336A
(en )
1894-02-28
Adjustable pen holder
CH6327A
(en )
1893-08-15
Pencil holder
CH6827A
(en )
1893-10-31
Holder for chalk, colored pencils and the like.
CH2986A
(en )
1891-05-30
Adjustable drawing and writing apparatus
CH3908A
(en )
1892-01-30
Pencil holder
GB189324853A
(en )
1894-09-08
Improvements in School Slates.