CAVITY MOLD ASSEMBLIES SUBJECT TO INTERNAL PRESSURES IN USE, SUCH AS SAND CORE BOXES, TIRE MOLDS AND THE LIKE, EQUIPPED WITH A BARRIER STRUCTURE BETWEEN SEPARABLE FACES OF JOINTS THEREOF TO PREVENT BLOW-BY OF MATERIAL FROM WITHIN THE ASSEMBLIES THROUGH SUCH JOINTS

'assembl':3,41 'barrier':23 'blow':34 'blow-bi':33 'box':14 'caviti':1 'core':13 'equip':20 'face':27 'intern':6 'joint':29,44 'like':19 'materi':37 'mold':2,16 'pressur':7 'prevent':32 'sand':12 'separ':26 'structur':24 'subject':4 'thereof':30 'tire':15 'use':9 'within':39

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