![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to KR1995-20167 priority Critical Priority to KR19950020167 priority Priority to KR1995-39230 priority Priority to KR1019950039230A priority patent/KR0185260B1/en Application filed by Chang Min Tech Co Ltd filed Critical Chang Min Tech Co Ltd Publication of CA2171801A1 publication Critical patent/CA2171801A1/en Application granted granted Critical Publication of CA2171801C publication Critical patent/CA2171801C/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Original Assignee Chang Min Tech Co Ltd 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 or warranty as to the accuracy of the list.) ( en Inventor Hak Soo Chang Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number CA002171801A Other languages French ( fr) Google Patents A level measurement method and apparatus using measurements of water column pressure thereforÄownload PDF Info Publication number CA2171801C CA2171801C CA002171801A CA2171801A CA2171801C CA 2171801 C CA2171801 C CA 2171801C CA 002171801 A CA002171801 A CA 002171801A CA 2171801 A CA2171801 A CA 2171801A CA 2171801 C CA2171801 C CA 2171801C Authority CA Canada Prior art keywords water pressure measurement water column depth Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents CA2171801C - A level measurement method and apparatus using measurements of water column pressure therefor CA2171801C - A level measurement method and apparatus using measurements of water column pressure therefor
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