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发明名称
Direction indicator
摘要
申请公布号
US1757678(A)
申请公布日期
1930.05.06
申请号
US19270231091
申请日期
1927.11.04
申请人
DAVIS MORGAN WILLIAM;EZRA KNAPTON
发明人
MORGAN WILLIAM DAVIS;KNAPTON EZRA
分类号
B60Q1/34
主分类号
B60Q1/34
代理机构
代理人
主权项
地址
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