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Security control of automatic elevator cars
US 3,388,376 A
Filed
: 04/26/1965
Issued
: 06/11/1968
Est. Priority Date
: 04/26/1965
Status: Expired due to Term
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Current Assignee
Magee, John E.
Original Assignee
Magee, John E.
Inventors
Magee, John E.
Application Number
US04/450,791
Time in Patent Office
1,142 Days
Field of Search
US Class Current
187/384
CPC Class Codes
B66B 1/468
Call registering systems
B66B 2201/4623
Wherein the destination is ...
B66B 2201/463
Wherein the call is registe...
B66B 2201/4676
for checking authorization ...
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