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1.发明授权Readily disconnectible traffic detector switch and frame having two different size fastening holes 失效易于断开的交通检测开关和框架具有两个不同尺寸的紧固孔
公开(公告)号：US3187138A
公开(公告)日：1965-06-01
申请号：US6623660
申请日：1960-10-31
Applicant: LAB FOR ELECTRONICS INC
Inventor： CULVER ROBERT D
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