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
CA192,049A
Inventor
Charles C. Simmons
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.)
Auto Crane Co
Original Assignee
Auto Crane Co
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 Auto Crane CofiledCriticalAuto Crane Co
Priority to CA192,049ApriorityCriticalpatent/CA1003068A/en
Application grantedgrantedCritical
Publication of CA1003068ApublicationCriticalpatent/CA1003068A/en