George Hutchinson Mann |
|---|
|
| Topic Navigation |
|---|
|
Page Sections
Documents |
| Date | Document Name & Details | Documents |
|---|---|---|
| 10 March 1914 | Valve and Valve-Gear for Internal-Combustion Engines. United States Patent USRE 13,697 George Hutchinson Mann |  PDF - 474KB - 4 pages |