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
CA661981A
Inventor
S. Matlack Albert
Original Assignee
Hercules Powder Co
Publication date
Application grantedgrantedCritical
Publication of CA661981ApublicationCriticalpatent/CA661981A/en