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United States Utility Patents
4,987,310 - 4,987,319

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NumberTitle
4,987,310 Positively ventilated fingernail irradiation device
4,987,311 Electron-detector diode biassing scheme for improved writing by an electron beam lithography machine
4,987,312 Process for repositioning atoms on a surface using a scanning tunneling microscope
4,987,313 Method of and apparatus for the storage of radioactive waste
4,987,314 Actuator apparatus utilizing a shape-memory alloy
4,987,315 Hinge mounted and slidable sun visors
4,987,316 Passenger restraint firing circuit
4,987,317 System for putting electronic units connected to a communications channel into an operational state or into a stand by state
4,987,318 High level clamp driver for wire-or buses
4,987,319 Programmable input/output circuit and programmable logic device



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