Inventor
Annie Getchell
Nº
247494
Invention
Hardening copper
Date
September 26, 1881
Address
Boston, MA
Assignor
Assignor Address
Illustration
We are currently working on embedding the patent drawings.
View now on Google Patents.

We’re creating original things.
Come take a peek.

Sign up to our waitlist to get the inside scoop on what we’re working on next.
BookPatentsBioContact
© 2022 Emikeni Inc. All Rights Reserved.