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 |
| 7490729 | Center buffer coupling for railroad cars The present invention relates to a center buffer coupling for railroad cars that has a coupling head 1 and a coupling shaft 2 that holds the coupling head 1 on its front end 3, whereby the rear end 4 of the coupling shaft 2 ... | 02/17/2009 |
| 7055705 | Central buffer coupling A central buffer coupling for coupling a first rail car body with a second, adjacent rail car body of a multiple-unit rail vehicle, has a coupling head pivotally connected by a coupling shaft to a linking housing of the rail car body, and a pivoting unit pivoting th... | 06/06/2006 |
| 6989105 | Detection of hardmask removal using a selective etch A method of creating electrical shorts within an interconnection structure, using a selective etch, to detect a region that is missing a protective hardmask in order to prevent future use of the defective device. ... | 01/24/2006 |
| 5472104 | Central buffer coupling for rail-borne vehicles pivotable between an operative and inoperative position The present invention pertains to a central buffer coupling for rail-borne vehicles with a two-part coupling shaft formed by a front shaft part (2) carrying the coupling shaft (1) and by a rear shaft part (3) hinged horizontally pivotably to the chassis o... | 12/05/1995 |