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 |
| 4452108 | Ratcheting pipe wrench An improved ratcheting pipe wrench which includes a first toothed jaw formed on a first member and a second toothed jaw rotatably carried by a second member provided with an elongated handle portion. The first member has a shank portion which is slidably ... | 06/05/1984 |
