B43K21/04 - CPC Classification Index

ClassID:

59494 ⎘

B43K21/04 - CPC Classification

Classification description:

Propelling pencils; Writing-core feeding mechanisms with the writing-cores brought into position by gravity

Sub-classes:

B43K21/045 » {with writing-cores automatically replaced from magazines} 0

Recent Application in this class:

20160375715

Writing utensil with retract piece

20080187388

Mechanical pencil with rotating cylinder

20070231049

Writing instrument