B43K5/1836 - CPC Classification

Pens with ink reservoirs in holders, e.g. fountain-pens; Arrangements for feeding the ink to the nibs; Mechanical feeding means, e.g. valves; Pumps; Valves automatically closing

• B43K5/1845 » {opened by actuation of the writing point } 16
• B43K5/1863 » {opened by actuation of the rear-side of the pen} 5
• B43K5/1881 » {when the writing point points upwards} 1

Recent Application in this class: