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Machinery pattern making (1894)
Dingey, Peter Spear. [from old catalog] · New York, J. Wiley & sons · leaf 216
32 to 35 2H P … FULL SIZE GEAR TEETH.From Prof. S. IV. Robinsons Templet Odoniograph. 2S to 27 m: p. 2S to 31 IH: r. 32 to 3d mi PPatternmaking
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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