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
Peschke Wilhelm
Haack Erich
Heerdt Ruth
Aumueller Walter
Korger Gerhard
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.)
CF Boehringer und Soehne GmbH
Original Assignee
Walter Aumueller
CF Boehringer und Soehne GmbH
Publication date
Application grantedgrantedCritical
Publication of CA604043ApublicationCriticalpatent/CA604043A/en