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 |
| 7129849 | Analog instrument gauge display An analog instrument gauge display is provided that comprises a lens having a pointing indicia displayed thereon, a back plate having a pattern thereon, and a drive motor coupled to the lens and configured to rotate the lens and pointing indicia relative to the patt... | 10/31/2006 |
| 7113080 | Indicator for straddle type vehicle An indicator for a straddle type vehicle includes a dial plate and scale markings provided on the dial face. Each of the scale markings protrudes from a flat dial face of the dial plate and is provided with a slant face inclined relative to the flat dial face for re... | 09/26/2006 |
| 6925959 | Indicating instrument The invention relates to an indicating instrument, particularly for a motor vehicle, comprising an approximately circular scale (12), which is placed on a dial (5), provided for a physical quantity, and along which a pointer (10) can be displace... | 08/09/2005 |
| 6710718 | Slim profile indicating instruments An apparatus includes indicating instruments with slim profiles. The indicating instrument comprises a meter movement and a circuit board. The main body of the meter movement is situated in an aperture in the circuit board. With this placement, the front end of the ... | 03/23/2004 |
| 6624608 | Indicating instrument for a vehicle In an indicating instrument for a vehicle including a step motor and a stopper unit for stopping a pointer at a zero position, a memory for pre-storing a zero-level electric angle as a correction value at which zero-return alternating signal becomes a zer... | 09/23/2003 |
| 6437697 | Propane level monitor assembly A propane level monitor assembly for determining the level of propane in a storage tank. The propane level monitor assembly includes a gauge monitor assembly including a housing being adapted to be removably mounted upon a propane tank gauge, and also inc... | 08/20/2002 |
| 5949346 | Light-driven display device An LED display device has an indicator having a housing. The housing has at least one incident portion which receives light from at least one LED. The incident portion has a reflection surface at its inside surface. LEDs emit light from one side or one lo... | 09/07/1999 |
| 4507959 | Aircraft instruments A Mach airspeed indicator instrument has a pointer that is rotatable around an airspeed scale and a Mach scale, the Mach scale itself being rotated in response to altitude change. A marker can be rotated around the scales via a cam that is manually rotate... | 04/02/1985 |
| 4467643 | Aircraft indicator capable of operation in HSI mode or CDI mode An indicator instrument for aircraft may be operated in either of two modes. In an HSI mode, first indicia reflect heading, second indicia reflect selected course, and third indicia reflect course deviation. In a CDI mode, the first indicia reflect select... | 08/28/1984 |
| 4223402 | Clock hand linkage and support assembly A clock hand linkage and support assembly (10) for use with a clock drive mechanism (11) having limited driving torque and power supply and which rotationally increments a hand (14) in discrete intervals through a drive shaft (12) includes a hub (13) havi... | 09/16/1980 |
| 3981266 | High visibility dial indicator A shower safety comfort temperature guide for use with bathing showers and the like in a manner to assist an individual in pre-judging the comfort zone of the water prior to bodily contact with the water, the guide intended to be attached to the shower he... | 09/21/1976 |