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 |
| 4467818 | Low profile axial flow combine A low profile axial flow combine with a low center of gravity for improved stability, with reduced overall machine height for ease of shipping and with high capacity grain tank of the saddle type. A threshing and separating rotor, in coaxial relationship ... | 08/28/1984 |