CH51972A
(en )
1911-10-16
Apparatus for sharpening pens and pencils
CH47277A
(en )
1910-06-16
Apparatus for sharpening pens and pencils
CH53600A
(en )
1912-03-01
Device for sharpening pens and pencils
CH52916A
(en )
1912-01-02
Device for sharpening writing materials
CH73807A
(en )
1916-11-16
Apparatus for sharpening chalk and the like
CH79131A
(en )
1918-10-01
Apparatus for sharpening chalk and the like
CH58939A
(en )
1913-04-01
Device for sharpening writing and drawing pens
CH37758A
(en )
1907-07-31
Apparatus for sharpening crayons
CH63377A
(en )
1914-01-16
Apparatus for marking out curves
FR430214A
(en )
1911-10-11
Pencil sharpener
CH47276A
(en )
1910-06-16
Device for carrying fountain pens for inkwells
CH56380A
(en )
1912-11-01
Device for applying letters and characters
CH55691A
(en )
1912-09-02
Apparatus for killing mice
CH49918A
(en )
1911-04-01
Pencil sharpening machine
FR429371A
(en )
1911-09-21
Pencil sharpening machine
CH53942A
(en )
1912-04-01
Apparatus for moistening textiles in an air-diluted room
CH53471A
(en )
1912-03-01
Apparatus for polishing gemstones
CH71704A
(en )
1916-02-01
Shearer for sharpening pencils
CH50394A
(en )
1911-05-16
Apparatus for sharpening knives
CH56620A
(en )
1912-11-16
Pencil sharpener
FR408121A
(en )
1910-03-18
Advanced pencil sharpening machine
CH61404A
(en )
1913-09-16
Method and device for sorting regrind
CH49269A
(en )
1911-01-16
Method and device for sharpening millstones
AU1463809B
(en )
1910-03-22
An improved apparatus for sharpening pencils
FR512495A
(en )
1921-01-24
Tip protector for pencil, pen holder and the like