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发明名称
Automatic back-drift brake for motor vehicles
摘要
申请公布号
US1973891(A)
申请公布日期
1934.09.18
申请号
US19330682338
申请日期
1933.07.26
申请人
BANKERT DAVID C
发明人
BANKERT DAVID C.
分类号
B60T7/12
主分类号
B60T7/12
代理机构
代理人
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