4. Telephonic communications
  5. With usage measurement
  6. Call charge metering or monitoring

Chizuko Yoshida

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Heat exchanger for cooling circulating water of fuel cells...

Heat exchange – With coated – roughened or polished surface
Reexamination Certificate

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Heat exchanger made of aluminum alloy

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Weight per unit area specified
Reexamination Certificate

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High frequency heating oven with cooking vessel

Electric heating – Metal heating – Of cylinders
Patent

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Telephone call fee notifying system and telephone call fee notif

Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent

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Profile ID: LFUS-PAI-P-1255846

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