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Title:
Operating mechanism for elevator doors
Document Type and Number:
United States Patent 1534210
Inventors:
Griffith, Thomas E.
Dodds, Lee L.
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Sponsored by:
Flash of Genius
Publication Date:
04/21/1925
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Assignee:
TYLER CO W S
Primary Class:
49/102
International Classes:
B66B13/08
;
B66B13/02
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