Container and information provision system

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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Details

C340S603000, C340S612000, C340S613000, C340S539100

Reexamination Certificate

active

07663497

ABSTRACT:
One of the embodiment of present invention includes at least one transmitter-receiver set including a transmitter and a receiver opposed with an object to be measured therebetween; and a transmission device that estimates the amount of the object based on the attenuation of electromagnetic waves that are transferred between the transmitter and the receiver of the transmitter-receiver set, and transmits information on the estimated amount of the object to be measured.

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patent: 2004049237 (2004-06-01), None

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