AU493258B2 - Method of supervising the filling level in hoppers, shafts silos andthe like for miscellaneous materials and means for performing the method
- Google Patents
Method of supervising the filling level in hoppers, shafts silos andthe like for miscellaneous materials and means for performing the method
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ABB Norden Holding AB
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ASEA AB
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Priority claimed from SE7303961Aexternal-prioritypatent/SE385408B/en
Application filed by ASEA ABfiledCriticalASEA AB
Application grantedgrantedCritical
Publication of AU493258B2publicationCriticalpatent/AU493258B2/en
Publication of AU6698974ApublicationCriticalpatent/AU6698974A/en
AU66989/74A1973-03-211974-03-21Method of supervising the filling level in hoppers, shafts silos andthe like for miscellaneous materials and means for performing the method
ExpiredAU493258B2
(en)