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 |
| 6419029 | Drilling tool magazine A drilling tool magazine and a horizontal boring machine having a drilling tool magazine in which automatic and reliable handling and access to any of the drilling tools to be handled is ensured, the drilling tool magazine (10) which is particularly suita... | 07/16/2002 |
