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.

PatentYogi-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

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