GB626014A
(https= )
GB568769A
(en )
1945-04-19
Improvements in drawing instruments
GB612869A
(en )
1948-11-18
Clip for fountain pens and the like
MY5400051A
(en )
1954-12-31
Improvements in or relating to writing instruments
ES178179A1
(es )
1947-07-16
Perfeccionamientos en o relativos a plumas o instrumentos de escribir con deposito
GB365475A
(en )
1932-01-21
An improved clamp
GB318024A
(en )
1929-08-29
Ellipsograph
GB560382A
(en )
1944-04-03
Improvements in or connected with drawing or marking instruments
GB569834A
(en )
1945-06-11
An improved rule, set-square, straight-edge or the like
GB609996A
(en )
1948-10-08
Improvements in the construction of straight edges, tee squares and other instruments for use when drawing or ruling lines
GB620005A
(en )
1949-03-17
Improvements relating to drawing compasses
FR1001437A
(fr )
1952-02-25
Perfectionnements apportés aux instruments de dessin pour le traçage de lignes à l'encre
FR943041A
(fr )
1949-02-24
Perfectionnements aux claviers d'instruments de musique
GB576354A
(en )
1946-03-29
Improvements in or relating to drawing instruments
GB569988A
(en )
1945-06-18
Improvements in or relating to mathematical instruments
AU131037B2
(en )
1946-11-28
Improvements in writing instruments
AU135763B2
(en )
1946-10-24
Improvements in writing instruments
AU820346A
(en )
1947-11-20
Improvements in or relating to writing instruments
GB638512A
(en )
1950-06-07
Improvements in or relating to electric immersion heaters
AU130299B2
(en )
1947-07-31
Improved ink-feeding means for writing instruments orthe like and ink reservoirs therefor
CA434125A
(en )
1946-04-16
Marking instrument
GB807566A
(en )
1959-01-14
A mouthpiece for wind instruments
GB584805A
(en )
1947-01-23
A new or improved instrument for use by draughtsmen
AU130303B2
(en )
1947-09-18
Improvements relating to writing instruments
AU552746A
(en )
1946-11-28
Improvements in writing instruments