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
GB1314950A
Inventor
Eric Ernest Samuel Wade
Charlesworth Livsey
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.)
LANG PEN Co Ltd
Original Assignee
LANG PEN Co Ltd
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 LANG PEN Co LtdfiledCriticalLANG PEN Co Ltd
Priority to GB1314950ApriorityCriticalpatent/GB679065A/en
Publication of GB679065ApublicationCriticalpatent/GB679065A/en