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发明名称
DRAIN TILE LAYING APPARATUS
摘要
申请公布号
US3421609(A)
申请公布日期
1969.01.14
申请号
USD3421609
申请日期
1966.09.19
申请人
HANCOCK BRICK & TILE CO.:THE
发明人
JOHN D. SCHMUNK
分类号
E02B11/00;E02B11/02;F16L1/036;(IPC1-7):B65G11/00
主分类号
E02B11/00
代理机构
代理人
主权项
地址
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