专利类型: 相变材料专利导航公开（公告）号: DE69007945T2申请日: 1990-12-04申请局: DE原始专利权人: MITSUBISHI PETROCHEM ENG | JAPAN ETHANOL CO LTD | TOKYO GAS CO LTD当前专利权人: Tokyo Gas Co Ltd | Japan Ethanol Co Ltd | Mitsubishi Petrochemicals Engineering Co Ltd
