Knitting; a manual of practical instruction in the mechanical details of all types of knitting machinery, their operation, adjustment, and care (1909)
American School of Correspondence, Metcalf, M. A. [from old catalog] · Chicago, American school of correspondence · leaf 64
re usually made with bronze bodies, thoughother metals and compositions are employed by different makers,or for that matter by the same makers. The blades are of steel;hardened and tempered in most instances, but often treated other-wise as the style of the bur seems to require, or the fancy of…
Knitting machines
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