#cartridge.module  a module designed to be inserted into a larger piece of equipment; "he loaded a cartridge of fresh tape into the tape deck"
  supertype:  #module  a self-contained component (unit or item) that is used in combination with other components
  subtype:  #ink_cartridge__inkcartridge  a cartridge that contains ink and can be replaced
  subtype:  #tape_cartridge  a cartridge containing magnetic tape; for use with audio or video recorders or computer systems

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