Title:
DOOR MOVING MECHANISM
United States Patent 3478469
Inventors:
Estes, Cyrus L.
Publication Date:
11/18/1969
Export Citation:
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Assignee:
Cyrus, Estes L.
Primary Class:
49/199
Other Classes:
49/28, 49/108, 200/47, 318/266
International Classes:
E05F15/16; E05F15/16; (IPC1-7): E05D15/22
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US Patent References:
3207501Door operator mechanism
2992819Door operating mechanism
2905463Elevator door carrying mechanism
2056174Automatic closure operating device
2053172Electric door opener




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