System for magnetically attaching templeless eyewear to a person
A system of eyewear that eliminates the need for hinges on the frames of the eyewear.
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| Number | Title | Issue Date |
| 4181932 | Power converter A power converter is disclosed which is used for converting an a.c. power to a d.c. power or vice versa, and which comprises a first converter unit operated at a variable control angle with phase advanced to an input a.c. source voltage, and a second conv... | 01/01/1980 |
| 4173039 | Current based power supply Multi-stage current operated power supply including linear transformer coupled to AC power lines and provides positive and negative regulated output progressively charged during each half cycle of input current while maintaining ampere-turns balance.... | 10/30/1979 |
| 4035686 | Narrow emission spectrum lamp using electroluminescent and photoluminescent materials A lamp assembly for providing light emission only over a selected portion of the visible spectrum which lamp assembly includes an electroluminescent means for emitting light over a predeterminable range of the visible spectrum which includes such selected... | 07/12/1977 |
| 4013955 | Analog signal processor An analog signal processor that is particularly suitable for measuring, igrating and holding a single or a pair of analog signals. The input signal to the analog signal processor may be sinusoidal of relatively low frequency and of low signal strength an... | 03/22/1977 |
| 4001697 | Linear A.C. measurements A highly linear AC to DC conversion system comprises a variable gain amplifier via which an AC signal to be converted is applied to an AC/DC converter. The output of the AC/DC converter is compared with a reference level and a control signal dependent on ... | 01/04/1977 |
| 3970915 | Fault detector and interrupt circuit useful in a television signal processing system A supply voltage for signal processing circuits of a television signal processing system is developed in the secondary circuit of a transformer. AC power is coupled to the primary of the transformer through a circuit breaker whose operation is controlled ... | 07/20/1976 |
| 3934189 | Power supply regulator high-line shunt bypass A power supply system which reduced total power consumption during high-line operation by providing a portion of the load current normally supplied by the series regulator of a series type regulated power supply from a lower voltage source through a passi... | 01/20/1976 |