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发明名称
PORTABLE LANDING ZONE
摘要
申请公布号
US3539986(A)
申请公布日期
1970.11.10
申请号
USD3539986
申请日期
1967.03.23
申请人
JESSE CRAWFORD;MARINE DETACHMENT
发明人
JESSE CRAWFORD
分类号
B64F1/20;(IPC1-7):B64F1/18
主分类号
B64F1/20
代理机构
代理人
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地址
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