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发明名称
Dispositif de pivotement et de blocage de roues et notamment pour machine à sol, ainsi que les machines à sol munies de ce dispositif
摘要
申请公布号
FR1204234(A)
申请公布日期
1960.01.25
申请号
FRD1204234
申请日期
1958.10.20
申请人
发明人
PETTENARO MAURICE-ANTOINE-PIER
分类号
E04F21/20
主分类号
E04F21/20
代理机构
代理人
主权项
地址
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