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Device for the axial fastening of an intermediate bottom or the like to the wall of a cylindrical gefa ses, for example, a sieve - or bell for earth in a safari to the fractional distillation or rectification
Device for the axial fastening of an intermediate bottom or the like to the wall of a cylindrical gefa ses, for example, a sieve - or bell for earth in a safari to the fractional distillation or rectification
