United States Patent 3126944
US Patent References:
/1159144.html
- - 1159144

/1227734.html
- - 1227734

Grain-car door
- - 1461839

Vehicle door
- - 1918475

Vertically sliding door construction
- - 2072092


Publication Date:
03/31/1964
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Primary Class:
160/90
Other Classes:
49/197, 52/68, 160/113
International Classes:
E05D15/58; E05D15/00
US Patent References:
2759538Window screen structure
3021896Overhead garage door and screen combination
3022817Three-way double garage door
3044540Canopy-door unit
3052291Knockdown building