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 |
| 6393644 | Bridge joint A bridge joint for use with a railroad track having standard rail sections with flanges. The bridge joint includes a fixed point having a forward integral accepting portion with a point and flanges rearward of the accepting portion. The joint also has a m... | 05/28/2002 |
