4. Electric power conversion systems
  5. Current conversion
  6. Including d.c.-a.c.-d.c. converter

Tohoku Ricoh Co. Ltd.

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AC rectifier having semi-conductor active rectifying element

Electric power conversion systems – Current conversion – Using semiconductor-type converter
Patent

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Apparatus for storing sheets driven out of an image forming...

Sheet feeding or delivering – Delivering – Multiple discharge
Reexamination Certificate

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Automatic stencil feeding and making device

Printing – Stenciling – Stencils
Patent

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Bag-in-carton, method for forming the bag-in-carton and carton b

Receptacles – Receptacle having flexible – removable inner liner – Means for venting air trapped between the liner and its...
Patent

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Bag-in-carton, method for forming the bag-in-carton and carton b

Manufacturing container or tube from paper; or other manufacturi – Container making – Rigid container
Patent

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