− | Brevetto di un porta mine. {{AdditionTo|AT|31184}} {{SamePatent|FR|06524E}} {{SamePatent|DK|09918}} {{SamePatent|GB|190616715}} {{SamePatent|CH|37618}} {{SamePatent|DE|183242}} | + | Brevetto di un porta mine. {{AdditionTo|AT|31184}} {{SamePatent|FR|06524E}} {{SamePatent|DK|09918}} {{SamePatent|GB|190616715}} {{SamePatent|CH|37618}} {{SamePatent|DE|183242}} {{SamePatent|CA|104033}} |