| 发明名称 |
PLASTIC BOWLING PIN AND METHOD OF MAKING THE SAME |
| 摘要 |
<p>PLASTIC BOWLING PIN AND METHOD OF MAKING THE SAME A bowling pin of injection molded plastic with a foam core and a solid skin molded at one and the same time. The skin and core may be of the same or of different plastics.</p> |
| 申请公布号 |
CA1220238(A) |
申请公布日期 |
1987.04.07 |
| 申请号 |
CA19830420715 |
申请日期 |
1983.02.01 |
| 申请人 |
WITKOWSKI, WILLIAM C. |
发明人 |
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| 分类号 |
A63D9/00;B29C44/04;B29C45/16;B29C45/00 |
主分类号 |
A63D9/00 |
| 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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