Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to SU1735433ApriorityCriticalpatent/SU412350A1/ru
Application grantedgrantedCritical
Publication of SU412350A1publicationCriticalpatent/SU412350A1/ru
Method of and Apparatus for Adjusting the Suction Gap between the Suction Head of a Drag Suction Dredger and a Submerged Layer to be Dredged up by the Dredger