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B21D 39/048

Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating ; Tube expanders of tubes with tubes; of tubes with rods {using presses for radially crimping tubular elements}

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data.epo.org/linked-data/def/cpc/B21D39-048
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Patent classification

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Cooperative Patent Classification
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B21D 39/04
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