Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 6854526 | Walk-behind agricultural working machine A walk-behind working machine has a machine body and a wheel mounted on the machine body for undergoing rotation to move the walk-behind working machine along a ground surface. A cultivator device is mounted on the machine body for cultivating the ground. A working ... | 02/15/2005 |
| 5139091 | Edger with improved operating lever assembly An edger having a main frame, at least one front wheel fastened in the front portion of the main frame, two rear wheels fastened in the rear portion of the main frame, a rotary blade disposed in the front portion of either side of the main frame and capab... | 08/18/1992 |
| 5119880 | Aerating apparatus Aerating apparatus is provided and includes a chassis having a handle, a rotor having aerating tines rotatably mounted on the chassis, drive means for rotating the rotor, a support member rotatably mounted on the chassis for movement between a down locati... | 06/09/1992 |
| 4910893 | Manually operated snow plow or other utility device A manually operated implement for performing a variety of tasks when equipped with a removable and replaceable utility device, includes a wheeled chassis having an elongate, longitudinal, chassis structural member extending forwardly and rearwardly in the... | 03/27/1990 |
| 4130952 | Plow attachment for roto-tiller A plow attachment for a roto-tiller wherein the roto-tiller includes a frame, a gear housing downwardly extending from the frame, means for driving a front axle shaft on each side of the gear housing, rear guide wheels, and means for driving said front wh... | 12/26/1978 |
