Title:
Door structure
Document Type and Number:
United States Patent 3313338
Inventors:
Knight, William H.
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Publication Date:
04/11/1967
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Export Citation:
Assignee:
PANEL LIFT DOOR CORP
Primary Class:
Other Classes:
160/202
International Classes:
E06B3/92; E06B3/00
US Patent References:
| 0013251 | ||||
| 0301429 | ||||
| 0952966 | ||||
| 1771554 | Window awning | |||
| 2574760 | Door operator | |||
| 2758836 | Door-operators | |||
| 2882044 | Garage door actuating device | |||
| 2893076 | Hollow panels | |||
| 2924861 | Flush type door having foamed plastic filler and method of constructing | |||
| 3086584 | Vertical venetian blind | |||
| 3096815 | Door operating apparatus | |||
| 3190345 | Sun blinds or shutters |
Foreign References:
| DE1072943B |