|
DE714718C
|
|
Device for automatically attaching pens or other stick-shaped workpieces to diving boards
|
|
DE712799C
|
|
Sharpener for writing, drawing and crayons
|
|
DE729093C
|
|
Filler pencil
|
|
DE702445C
|
|
Jig for pencil sharpening machines
|
|
GB500920A
|
|
Improvements in or relating to cursors for slide rules
|
|
DE710069C
|
|
Device for different colored patterns of the long sides of pens and other stick-shaped workpieces
|
|
DE697358C
|
|
narrow sides of pens and other stick-shaped workpieces
|
|
DE717530C
|
|
Exchange pen with a switching device operated by a rotary knob
|
|
DE699923C
|
|
Ink feed for fountain pens
|
|
DE700087C
|
|
Exchange pen with a switching device operated by a rotary knob
|
|
DE710846C
|
|
Interchangeable pen with lead holders adjustable on a feed device by means of a rotatably arranged sleeve
|
|
GB476035A
|
|
Improvements in or connected with writing pencils and the like
|
|
DE691765C
|
|
pen spring shut-off closure member
|
|
DE706476C
|
|
Fountain pen with a closure member blocking the flow of ink to the pen
|
|
GB468323A
|
|
Improvements in and relating to slide rules
|
|
GB457085A
|
|
Improvements in or connected with slide-rule cursors
|
|
DE684135C
|
|
Metal slide rule
|
|
DE680248C
|
|
Filler pencil with continuous lead advance
|
|
GB424863A
|
|
Improvements in or relating to cursors for slide rules
|
|
DE596286C
|
|
Slide rule
|
