| Author: | Hobbs, A. C., 1812-1891 |
| Subject: | TS, Locks and keys |
| Format: | Text |
| Date issued: | 2020 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Rudimentary Treatise on the Construction of Locks [electronic resource] / A. C. Hobbs |