Means for opening and closing elevator cars and landing gates

Title:

Means for opening and closing elevator cars and landing gates

United States Patent 1876438

Inventors:

Carl, Werner Herman

Application Number:

US39528529A

Publication Date:

09/06/1932

Filing Date:

09/26/1929

Export Citation:

Assignee:

OTIS ELEVATOR CO

Primary Class:

187/319

Other Classes:

187/280, 187/301

International Classes:

B66B13/12

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