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 |
| 4412882 | Method for producing composite pipes A novel method for producing a composite pipe having a desired wall thickness by using an endless steel belt as a mold which moves axially while rotating in the circumferential direction of a mandrel. In this method, a thickness regulating device spaced a... | 11/01/1983 |
| 4059136 | Thread lock Thread locking structure in which the separate fluid parts of a two-part adhesive (such as an epoxy resin and an activator) are applied in circumferentially related relation to the threads of a threaded member such as a bolt. At least one pair of adjacent... | 11/22/1977 |
