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 |
| 3960564 | Physical development process utilizing a physical developer containing a specific reducing agent, a thiol compound A solution for the selective electroless deposition of silver comprising as essential constituents silver salt, ammonium hydroxide and a reducer chosen from tartrate, formaldehyde or hydrazine and an organic compound having one or more cyclic or polar ali... | 06/01/1976 |
