Inventor
Bertha Kanfmann
Nº
206881
Invention
Improvement in wash-boards
Date
August 12, 1878
Address
Philadelphia, PA
Assignor
assignor of one-third of her right to Leopold J. Speer, same place.
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.