发明名称 |
A BAND OF SYNTHETIC BAGS AND A METHOD AND DEVICE FOR MANUFACTURING SUCH BAND |
摘要 |
A band of bags of plastic material connected with each other by perforation lines. In the two end parts of each perforation line the number of perforations and/or the width of the perforations per unit of width is greater than in the central part of the perforation line. A device for manufacturing said band of bags comprises a perforating member with equidistantly spaced first perforating pins and second perforating pins are present on either side of a central area between the first perforating pins. |
申请公布号 |
ZA7405994(B) |
申请公布日期 |
1975.09.24 |
申请号 |
ZA19740005994 |
申请日期 |
1974.09.20 |
申请人 |
WAVIN BV |
发明人 |
LELOUX A |
分类号 |
B31B1/14;B31B19/14;B31B27/00;B65D33/00 |
主分类号 |
B31B1/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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