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发明名称
Method and apparatus for forming flexible tubes
摘要
申请公布号
US2418974(A)
申请公布日期
1947.04.15
申请号
US19440551044
申请日期
1944.08.24
申请人
HENRY NELSON R
发明人
HENRY NELSON R.
分类号
F16L11/02
主分类号
F16L11/02
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代理人
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