Otis Elevator Compant
Otis Elevator Compant Patent applications | ||
Patent application number | Title | Published |
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20120111671 | DOUBLE-DECK ELEVATOR - To provide a double-deck elevator characterized by the fact that by increasing the story height adjustment range in the direction in which the two cars approach each other, it is possible to increase the degree of building design freedom. Two up/down cars ( | 05-10-2012 |