B67B 7/20

Hand- or power-operated devices for opening closed containers for breaking vacuum seals between lids or covers and bodies of preserving jars, e.g. by wedge action

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data.epo.org/linked-data/def/cpc/B67B7-20

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Patent classification

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B67B 7/22

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Cooperative Patent Classification

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B67B 7/00

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