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
Inventor
Lloyd Wise William
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.)
Heyden Von GmbH
Original Assignee
Heyden Von GmbH
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 Heyden Von GmbHfiledCriticalHeyden Von GmbH
Application grantedgrantedCritical
Publication of GB189621026ApublicationCriticalpatent/GB189621026A/en