Canadian machinery and metalworking (July-December 1917) . Two-key Tappet Shoes and Dies, Tappets, Bosses, Cams and Stamp Heads Also Manufacturers of LiningPlates for Ball and Tube MillsConcaves and Heads for Gyra-tory Crushers. Machine Moulded Gears Any size up to 18 feet in patterns needed. Send Us Your Specifications,We Do the Rest. Write— Hull Iron & Steel Foundries, Limited HULL, Stamp Head Mention this paper when writing advertisers. It will identify the proposition about which you require information. July 19, 1917. CANADIAN MACHINERY 81

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmachinery, bookyear19