− | Brevetto di un porta mine. {{SamePatent|FR|06524E}} {{SamePatent|DE|183242}} {{SamePatent|DK|09918}} {{SamePatent|CH|37618}} | + | Brevetto di un porta mine. {{SamePatent|FR|06524E}} {{SamePatent|DE|183242}} {{SamePatent|DK|09918}} {{SamePatent|CH|37618}} {{SamePatent|AT|31185}} |