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Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 290
Fig. 4. Constructing Contact Filters at Sheffield. Fig. 5. A Typical English Screening Plant. \ lit Wk- . --.IS w j ,*-• ,11 §»«|Hi|k» . ^iL XI _:■» -.^^ |S . ^ ZZkv • -v - -V , — •■ ■^X^__. ■ ' MB Lr > ^N Fig. 6. A Typical German Screening Plant.Engineering
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