Fire escape appts. for high building
Fire escape appts. for high building has body supporting device with pinions meshing with vertical racks on building wall
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| Format: | Patent |
| Sprache: | eng |
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| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | Fire escape appts. for high building has body supporting device with pinions meshing with vertical racks on building wall |
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