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  • HC20240960A New Utility Patent for a Liftable, Lowerable, and Telescopic Swing-Arm Cleaning and Warehouse-Sweeping Machine
    HC20240960A New Utility Patent for a Liftable, Lowerable, and Telescopic Swing-Arm Cleaning and Warehouse-Sweeping Machine
  • Practical New Utility Patent Certificate (Seal)
    Practical New Utility Patent Certificate (Seal)
  • vibratory screen
    vibratory screen
  • Air cannon
    Air cannon