Elevator Control System

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Title: Elevator Control System
Creator(s): Schwarz, Ernst L.
Date: 1942-03-31
Description: United States Patent
Type: Patent
File type: application/pdf
Sponsor or funding information: Armour Research Foundation
Access: Open Access
Rights: No Copyright - United States
http://rightsstatements.org/page/NoC-US/1.0/
Identifier: http://hdl.handle.net/10560/30
Patent Number: 2,278,120