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United States Utility Patents
4,157,050 - 4,157,059

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NumberTitle
4,157,050 Pedal guitar
4,157,051 Indicating organ stop tablet
4,157,052 Self-leveling stud
4,157,053 Adjustable charge bar
4,157,054 Hypervelocity rocket system with velocity amplifier
4,157,055 Copying attachment for crankshaft milling machine
4,157,056 Multi-cylinder hydraulic mechanism
4,157,057 Single acting piston
4,157,058 Long seam gluer
4,157,059 Copy set separating tray for document copier



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