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
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.)
Thomas Watson & Sons Rochdale
Original Assignee
Thomas Watson & Sons Rochdale
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 Thomas Watson & Sons RochdalefiledCriticalThomas Watson & Sons Rochdale
Application grantedgrantedCritical
Publication of GB189401949ApublicationCriticalpatent/GB189401949A/en