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发明名称
Building construction and units
摘要
申请公布号
US2440836(A)
申请公布日期
1948.05.04
申请号
US19460655049
申请日期
1946.03.18
申请人
TURNGREN OSCAR E
发明人
TURNGREN OSCAR E.
分类号
A63H33/04
主分类号
A63H33/04
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