
audiobook
by United States. Department of Commerce
Language
en
Duration
~2 hours (132K characters)
Publisher of text edition
Project Gutenberg
Credits
Richard Tonsing and The Online Distributed Proofreading Team at https://www.pgdp.net
Release date
2021-03-01
Rights
Public domain in the USA.
Description
Originally published under the title: General Information Concerning Patents.