Plasticville Patents Plasticville Patents Patent No. 2,600,900: Toy House Patent No. 2,600,900 Toy House Patent No. 2,841,919: Detachable Joint for Toy House Patent No. 2,841,919 Detachable Joint for Toy House Patent No. 2,780,028 Door for Toy House Patent No. 2,780,028 Door for Toy House