http://book.klll.cc/ebooks/subject/25805.opds?sort_order=release_date 2025-08-21T20:17:01Z Books about Locks and keys (sorted by release date) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-21T20:17:01Z https://book.klll.cc/ebooks/subject/25805.opds?sort_order=title Sort Alphabetically by Title 2025-08-21T20:17:01Z https://book.klll.cc/ebooks/subject/25805.opds?sort_order=downloads Sort by Popularity 2025-08-21T20:17:01Z https://book.klll.cc/ebooks/63128.opds Rudimentary Treatise on the Construction of Locks George Dodd and A. C. Hobbs 2025-08-21T20:17:01Z https://book.klll.cc/ebooks/49704.opds Protection from fire and thieves : Including the construction of locks, safes, strong-rooms, and fireproof buildings; burglary, and the means of preventing it; fire, its detection, prevention, and extinction; etc. George Hayter Chubb 2025-08-21T20:17:01Z https://book.klll.cc/ebooks/44022.opds On the Development and Distribution of Primitive Locks and Keys Augustus Henry Lane-Fox Pitt-Rivers