| 发明名称 |
PROTECTIVE PAD AND METHOD OF USING |
| 摘要 |
Service connections to gas mains are protected against external corrosive influences by covering with a protective mastic sheet material which is slit in a pattern permitting complete void-free coverage by simple and rapid hand application.
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| 申请公布号 |
US3650869(A) |
申请公布日期 |
1972.03.21 |
| 申请号 |
USD3650869 |
申请日期 |
1969.07.07 |
| 申请人 |
MINNESOTA MINING AND MFG. CO. |
发明人 |
STANLEY M. LINDELL |
| 分类号 |
F16L58/18;(IPC1-7):B32B3/04;B32B3/10 |
主分类号 |
F16L58/18 |
| 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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