This Day in Patent History – On October 31, 1839, patent was granted to Sumner King for Elliptical spring for carriages

On October 31, 1839, patent was granted to Sumner King for Elliptical spring for carriages.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Patent Information

Publication number: US1387 A
Patent Title: Elliptical spring for carriages
Publication type: Grant

US1387
Publication date: 31 Oct 1839
Inventors: Stjmner King