parte superior do eixo
The manhole top piece (1) has reinforcement structures (2) arranged at an inner surface of a manhole dome. The manhole dome is extended downwards radially or parallely, angular or concentrically from one or more imaginary points or lines outside the dome.
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| Format: | Patent |
| Sprache: | por |
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| Zusammenfassung: | The manhole top piece (1) has reinforcement structures (2) arranged at an inner surface of a manhole dome. The manhole dome is extended downwards radially or parallely, angular or concentrically from one or more imaginary points or lines outside the dome. |
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