Inventor
Sophia L. Mercer
Nº
123277
Invention
Improvement in needle-threaders
Date
January 29, 1872
Address
Washington, DC
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.