Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Writing instrument receiving receptacle +
Fountain pen desk set +
Fountain pen +
Clip for fountain-pen caps, pencils and the like +
Receptacle for pen points provided with dark bands +
Fountain pen filling attachment for ink bottles or the like +
Means for making pen nibs +
Fountain pen +
Cap construction +
Tip for mechanical pencils +
Pen-point +
Container +
Fountain pen desk set +
Self-filling pen +
Pencil +
Feed for fountain pens +
Fountain pen +
Frictional packing +
Feed bar and pen point +