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发明名称
CHAIN LOCK INDICATOR
摘要
申请公布号
US3493256(A)
申请公布日期
1970.02.03
申请号
USD3493256
申请日期
1968.06.12
申请人
DAVID A. RAMLER
发明人
DAVID A. RAMLER
分类号
C07C59/64;E05C17/36;(IPC1-7):E05C13/10;E05B41/00
主分类号
C07C59/64
代理机构
代理人
主权项
地址
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