http://www.gutenberg.org/ebooks/subject/39934.opds 2024-11-08T19:05:02Z Books about Hardware (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://www.gutenberg.org webmaster@gutenberg.org https://www.gutenberg.org/gutenberg/favicon.ico 25 1 2024-11-08T19:05:02Z https://sendtokindle.compellingsciencefiction.com/ebooks/72897.opds Hardware, estimating, and mill design 55 downloads