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发明名称
Improvements in or relating to machines for expanding tubes, for example tubes in the collectors of heat exchangers
摘要
申请公布号
GB809816(A)
申请公布日期
1959.03.04
申请号
GB19570004785
申请日期
1957.02.12
申请人
SOCIETE ANONYME DES USINES CHAUSSON
发明人
分类号
B21D39/06
主分类号
B21D39/06
代理机构
代理人
主权项
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