Communications: electrical – Continuously variable indicating – With meter reading
Patent
1981-01-23
1983-09-20
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
340696, 318266, H04Q 900, H02P 104, E05F 1160
Patent
active
044059230
ABSTRACT:
A garage door operation control system comprises a door operating apparatus for operating a garage door, a plurality of push buttons for issuing a plurality of operating commands associated with the door operation by predetermined button operations, means for setting an operating command by the operation of the push buttons, and means for controlling the operation of the door operating apparatus on the basis of the operating command thus set.
REFERENCES:
patent: 3371316 (1968-02-01), Johnson
patent: 3625328 (1971-12-01), Carli
patent: 3978376 (1976-08-01), Wilson
patent: 4328540 (1982-05-01), Matsuoka et al.
patent: 4338553 (1982-07-01), Scott, Jr.
Matsuoka Shigeru
Suzuki Mitsuo
Tokunaga Takeshi
Yamauchi Kogi
Yonekura Seiji
Hitachi , Ltd.
Yusko Donald J.
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