CH68329A
(en )
1915-03-01
Set-up for course books to quickly find a specific timetable
CH73808A
(en )
1916-12-01
Device for holding the open pages of a music book
CH66516A
(en )
1914-09-16
Device for gluing book spines
CH65893A
(en )
1914-07-16
Device for carrying vessels
NL1333C
(en )
1916-06-01
Improvement to a typographic deposit device
NL1128C
(en )
1916-04-01
Improvement to a reduction device
GB191419753A
(en )
1915-04-29
Improvements in or relating to Apparatus for Teaching Music.
CH62604A
(en )
1913-12-01
Drawing device for drawing multiple lines
CH68198A
(en )
1915-05-17
Pen for copying and drawing, mainly for carbonless books
CH64492A
(en )
1914-04-01
Device for combining loose sheets of paper into books
CH67419A
(en )
1914-12-01
Table set up for smoothing
CH55581A
(en )
1912-09-02
Device for printing multiplication tables
CH64026A
(en )
1914-03-02
Device for showing cinematograms
CH59675A
(en )
1913-06-02
Process for purifying crude rosin oils
CH70775A
(en )
1915-10-16
Process for cutting lines in sheet metal
CH48102A
(en )
1910-09-16
Device for stapling loose sheets
CH71812A
(en )
1916-02-16
Device for purifying water
CH74847A
(en )
1917-04-16
Device for distilling petroleum
CH70776A
(en )
1915-11-01
Method for gluing paper
NL602C
(en )
1915-04-15
Improvement to a hinged oar
NL1491C
(en )
1916-08-01
Improvement on a pipe wrench
CH72856A
(en )
1916-07-17
Process for drawing thin-walled pipes
NL1123C
(en )
1916-02-15
Improvement to the printing device for calculators
CH68347A
(en )
1915-03-16
Apparatus for sticking stickers
DK19331C
(en )
1914-10-05
Apparatus for Use in Music Teaching.