Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL75613CpublicationCriticalpatent/NL75613C/xx
B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
B43K—IMPLEMENTS FOR WRITING OR DRAWING
B43K21/00—Propelling pencils
B43K21/02—Writing-core feeding mechanisms
B43K21/04—Writing-core feeding mechanisms with the writing-cores brought into position by gravity
B43K21/045—Writing-core feeding mechanisms with the writing-cores brought into position by gravity with writing-cores automatically replaced from magazines