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Porteous' patent lock-up pop safety valve for locomotive, steamboat and stationary boilers

[Montréal? : s.n., 1884?]; 8 pages

Document Record
Creator Robert Mitchell & Co
Title Porteous' patent lock-up pop safety valve for locomotive, steamboat and stationary boilers
Published [Montréal? : s.n., 1884?]
Identifier 90504
Subject Relief valves
Soupapes de décharge
Document source Library and Archives Canada
Collection Monographs
Language eng
Description 1 sheet (verso blank) ; 25 cm.
Caption title.
Manufactured by Robert Mitchell & Co., Montreal.
Patented 2nd April, 1884.
Permanent Link http://online.canadiana.ca/view/oocihm.90504