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
CA825083A
Inventor
J. Frohlich Gerhard
Sin Go Ting
W. Segar Thomas
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.)
ST PAUL AMMONIA PRODUCTS
Original Assignee
ST PAUL AMMONIA PRODUCTS
Publication date
Application grantedgrantedCritical
Publication of CA825083ApublicationCriticalpatent/CA825083A/en