ELEVATOR SYSTEM
PROBLEM TO BE SOLVED: To provide a simple and cheap elevator system utilizing a secondary battery by omitting a switching element necessary for a discharge action and a control circuit and a drive circuit of the switching element. SOLUTION: A power supply necessary for a device of an elevator other...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
18.09.2001
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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