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.)
Individual
Original Assignee
Individual
Publication date
Application grantedgrantedCritical
Publication of CA47971ApublicationCriticalpatent/CA47971A/fr
An Automatic Apparatus for the Complete Ventilating of Railway Carriages, Tram-cars, Omnibuses, Private Carriages, Private Houses, Factories, and Ships.