Process of making hard-rubber articles such as combs and the like |
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| 申请号 | US39825820 | 申请日 | 1920-07-22 | 公开(公告)号 | US1359919A | 公开(公告)日 | 1920-11-23 |
| 申请人 | AMERICAN HARD RUBBER CO; | 发明人 | JAMES REARDON; | ||||
| 摘要 | |||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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