On January 16, 1909, David G Galbraith patented an improved paper clip.
Patent Information
Publication number: US957764 A
Patent Title: Paper Clip
Publication type: Grant
Publication date: 10 May 1910
Filing date: 16 Jan 1909
Priority date: 16 Jan 1909
Inventors: David G Galbraith
Original Assignee: Nannie L Galbraith