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United States Utility Patents
5,012,470 - 5,012,479

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NumberTitle
5,012,470 Data terminal equipment and data transmission control method
5,012,471 Value-strength based test pattern generator and process
5,012,472 Dynamic type semiconductor memory device having an error checking and correcting circuit
5,012,473 Fixed wavelength laser using multiorder halfwave plate
5,012,474 Polarization switching in active devices
5,012,475 Analog compensation system for linear lasers
5,012,476 Device of semiconductor materials formed on a substrate having a different lattice parameter and application to a laser
5,012,477 Optoelectronic power device and fabrication method thereof
5,012,478 Monolithic multiple beam semiconductor laser
5,012,479 Ultraviolet metal vapor laser having hard sealed internal mirrors



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