Mechanical rubber goods : manufactured by Gutta Percha & Rubber, Limited, successors to the Gutta Percha & Rubber Mfg. Co. of Toronto, Limited (1910)
Gutta Percha and Rubber Manufacturing Company · Toronto, Ont. : Gutta Percha & Rubber · leaf 17
and the hole in theroll, both being expressed in inches. Multiply this sum by thenumber of coils in the roll, and then multiply this product by 1.32.The three left-hand figures will represent approximately the numberof feet of belting in the roll. EXAMPLE A roll of 6-inch 4-ply belt measures 41… … THE GUTTA PERCHA & RUBBER MFG. CO. OF TORONTO ^ LIMITED -?> ^ <C
Gutta Percha and Rubber Manufacturing Company · Rubber goods · Commercial
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