CH49614A
(en )
1911-03-01
Pen box with counting frame and a device for learning to read
CH45650A
(en )
1909-12-01
Penholder with device for counting the lines
CH42628A
(en )
1909-02-16
Advertising box with interchangeable advertising text
CH41609A
(en )
1908-11-02
Device for writing or drawing for students
CH43543A
(en )
1909-05-17
Device for holding drooping eyelids in their normal position
CH46330A
(en )
1910-02-16
Device for dedusting gases
CH39055A
(en )
1908-01-16
Device for blackboards with a rotating writing board to fix the latter in different inclined positions
FR397067A
(en )
1909-04-28
Teaching device
CH45148A
(en )
1909-10-16
Device on pen holders to enable clean lines to be drawn using a ruler
CH46141A
(en )
1910-02-01
Device for holding a sheet
CH47272A
(en )
1910-06-16
Method and device for assembling patterns from basic figures in the photographic recording process for printing purposes
CH49147A
(en )
1911-01-16
Device to count the words and numbers written while writing on a typewriter
CH36298A
(en )
1906-12-31
Spring box with device for supporting objects in various inclined positions
CH47278A
(en )
1910-06-01
Pen and pen holder box with arithmetic aids
CH43887A
(en )
1909-06-16
Device for moving cross rods on looms
CH45452A
(en )
1909-11-16
Device for holding curtain rods and curtain boards
ES44319A2
(en )
1908-12-16
A speed recorder counter apparatus.
ES43417A1
(en )
1908-07-16
A speed recorder counter apparatus.
CH49287A
(en )
1911-01-16
Pen and pen holder box
CH45935A
(en )
1910-01-03
Device for regulating pocket watches
CH50441A
(en )
1911-06-01
Device for securing closures
FR392425A
(en )
1908-11-26
Security device applicable to letter boxes
GB190703283A
(en )
1907-05-23
A Device for Teaching Arithmetic.
CH35782A
(en )
1906-10-15
Device for gluing gummed paper bodies
CH44088A
(en )
1909-07-01
Device for holding the hat on the head