Message transmission device, and a message transmission system a

Communications: electrical – Continuously variable indicating – With meter reading

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Details

34082515, 34082517, 34082518, 358402, 358443, 358444, 358434, G05B 2302

Patent

active

054594545

ABSTRACT:
An electronic message transmission system including at least one transmission apparatus of the electronic message and a plurality of message receivers of the same wherein the electronic message is transmitted according to a predetermined transmission path connecting message receivers. A transmission state of the electronic message is memorized and up-dated in a memory and thereby, an addresser of the electronic message is able to know the state of the message transmission by referring to the contents of the memory.

REFERENCES:
patent: 4590554 (1986-05-01), Glazer et al.
patent: 4608661 (1986-08-01), Sasaki
patent: 4797884 (1989-01-01), Yalowitz et al.
patent: 4823256 (1989-04-01), Bishop et al.

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