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United States Utility Patents
4,433,400 - 4,433,409

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NumberTitle
4,433,400 Acoustically transparent hydrophone probe
4,433,401 Electronic timepiece having a stepping motor and driving circuit compensated for power source variations
4,433,402 Reference signal detection circuit in a rotary recording medium reproducing apparatus
4,433,403 Optical disc recording and retrieval system
4,433,404 Variety playing sound reproducing device
4,433,405 Rotary recording medium reproducing apparatus having a mechanism for connecting a lid member to a jacket
4,433,406 Rotary recording medium clamping mechanism
4,433,407 Method and apparatus for recording video signals into a metal substrate
4,433,408 Cantilever for pickup cartridge
4,433,409 Pick-up assembly for video disc player



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