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.)
LANGFORD JOSEPH H
SMITH GEO W
Original Assignee
LANGFORD JOSEPH H
SMITH GEO W
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 LANGFORD JOSEPH H, SMITH GEO WfiledCriticalLANGFORD JOSEPH H
Application grantedgrantedCritical
Publication of CA144432ApublicationCriticalpatent/CA144432A/en