| 发明名称 |
WEAR RESISTANT INTERLOCKING TILE AND APPARATUS COMPRISING SAME |
| 摘要 |
Interlocking wear-resistant tile are provided with rotatable tongue and groove mating edges. In preferred embodiments two adjacent edges of each tile are tongues and two other adjacent edges grooves. |
| 申请公布号 |
ZA7706901(B) |
申请公布日期 |
1978.09.27 |
| 申请号 |
ZA19770006901 |
申请日期 |
1977.11.18 |
| 申请人 |
MINNESOTA MINING & MFG CO |
发明人 |
HENSLEY W;JOHNSON J;RUEBEN J;SNYDER P |
| 分类号 |
B02C17/22;F16L9/14;F16L57/06;F16L58/04 |
主分类号 |
B02C17/22 |
| 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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