CA1293755CCA000545792ACA545792ACA1293755CCA 1293755 CCA1293755 CCA 1293755CCA 000545792 ACA000545792 ACA 000545792ACA 545792 ACA545792 ACA 545792ACA 1293755 CCA1293755 CCA 1293755C
Authority
CA
Canada
Prior art keywords
latch
lifting hook
bearing
slot
hook
Prior art date
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.)
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.)
Individual
Original Assignee
Individual
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
Priority claimed from PCT/SE1986/000471external-prioritypatent/WO1987004142A1/fr
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of CA1293755CpublicationCriticalpatent/CA1293755C/fr