Communications: electrical – Continuously variable indicating – With meter reading
Patent
1993-09-14
1995-10-17
Swarthout, Brent
Communications: electrical
Continuously variable indicating
With meter reading
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.
Hill A.
Matsushita Electric - Industrial Co., Ltd.
Swarthout Brent
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