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发明名称
FLOW INDICATOR
摘要
申请公布号
CA821035(A)
申请公布日期
1969.08.19
申请号
CAD821035
申请日期
申请人
ACME-DEVAC INDUSTRIES INC.
发明人
JAY A. HARPER
分类号
主分类号
代理机构
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