Browse Entries - L
- Laird Bros.
- see Laird John, Son & Co. (1829 - c. 1900) - Laird John, Son & Co. (1829 - c. 1900)
- Lake, Simon (1866 - 1945), Marine engineer and Naval architect
- The Lay Torpedoes
- Lay, John Louis (1832 - 1899), Engineer and Inventor
- The Lay-Haight Torpedo (c. 1880 - )
- Leavitt, Frank McDowell (1856 - 1928), Engineer and Inventor