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.)
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.)
BENJAMIN ALDEN PRINCE
EZRA PRESCOTT WATERHOUSE
Original Assignee
BENJAMIN ALDEN PRINCE
EZRA PRESCOTT WATERHOUSE
Publication date
Application grantedgrantedCritical
Publication of CA205756ApublicationCriticalpatent/CA205756A/fr