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发明名称
Maintenance aid indicator
摘要
申请公布号
US3297249(A)
申请公布日期
1967.01.10
申请号
US19650495159
申请日期
1965.10.12
申请人
LIGHT MAURICE M
发明人
LIGHT MAURICE M.
分类号
G07C7/00
主分类号
G07C7/00
代理机构
代理人
主权项
地址
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