Title:
Elevator drives
United States Patent 3215227


Inventors:
Macchesney, Chester M.
Application Number:
US26239563A
Publication Date:
11/02/1965
Filing Date:
03/04/1963
Assignee:
ELLAMAC INC
Clarence, Henderson S.
Primary Class:
International Classes:
B66B9/02
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US Patent References:
2227111Ball bearing screw jack1940-12-31
0966231N/A1910-08-02
0790137N/A1905-05-16