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
CA593806A
Inventor
H. Schilling August
Holzwarth Hans
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.)
SCHILLING ESTATE Co
Original Assignee
SCHILLING ESTATE Co
Publication date
Application grantedgrantedCritical
Publication of CA593806ApublicationCriticalpatent/CA593806A/en