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发明名称
Methods and apparatus for carrying out seam-welding operations on plastic film webs
摘要
申请公布号
GB750530(A)
申请公布日期
1956.06.20
申请号
GB19540001130
申请日期
1954.01.14
申请人
STEFFEN HAMMER
发明人
分类号
B29C65/02
主分类号
B29C65/02
代理机构
代理人
主权项
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