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.)
DETROIT MACHINE TOOL Co
HEIM GRINDER Co
Cincinnati Grinders Inc
Original Assignee
DETROIT MACHINE TOOL Co
HEIM GRINDER Co
Cincinnati Grinders Inc
Publication date
Application grantedgrantedCritical
Publication of CA277022ApublicationCriticalpatent/CA277022A/fr