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发明名称
Flexible nozzles
摘要
申请公布号
US2785016(A)
申请公布日期
1957.03.12
申请号
US19550536557
申请日期
1955.09.26
申请人
HECKETHORN MANUFACTURING & SUPPLY CO.
发明人
VOLLERTZEN SVEN HERMAN;HECKETHORN WILLIAM W.
分类号
E03C1/08
主分类号
E03C1/08
代理机构
代理人
主权项
地址
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