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发明名称
Pivotal Ladder
摘要
申请公布号
CA2046609(A1)
申请公布日期
1991.08.27
申请号
CA19902046609
申请日期
1990.02.26
申请人
WHITING ROLL-UP DOOR MFG. CORP.
发明人
WHITING, LAUREN C.
分类号
E06C5/02;E06C5/04;E06C5/24;(IPC1-7):E06C5/04
主分类号
E06C5/02
代理机构
代理人
主权项
地址
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