03/05/1932 Apparatus for sewing papers
Patent of introduction Nº 126.371
https://armia-eibar.eus/en/research/digital-archive/olave-solozabal-y-cia---el-casco/articles-for-office/original-patents/patente-no126.371
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03/05/1932 Apparatus for sewing papers
Patent of introduction Nº 126.371
