Legal status (The legal status 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 status listed.)
Expired
Application number
CA070633A
Inventor
W. Eng Joseph
C. F. Lin Stanley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELECTRO-SONIC POLLUTION CONTROL Corp
Original Assignee
ELECTRO-SONIC POLLUTION CONTROL Corp
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 filed by ELECTRO-SONIC POLLUTION CONTROL CorpfiledCriticalELECTRO-SONIC POLLUTION CONTROL Corp
Priority to CA070633ApriorityCriticalpatent/CA922244A/en
Application grantedgrantedCritical
Publication of CA922244ApublicationCriticalpatent/CA922244A/en