CN209399476U - 一种用于燃气采暖热水炉生活热水管路预热循环系统 - Google Patents
一种用于燃气采暖热水炉生活热水管路预热循环系统 Download PDFInfo
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Assignee: Shengchun Radiator Co.,Ltd. Assignor: HEBEI CHUNFENG HEATING EQUIPMENT CO.,LTD. Contract record no.: X2022990000700 Denomination of utility model: A preheating circulating system for domestic hot water pipeline of gas heating hot water boiler Granted publication date: 20190917 License type: Common License Record date: 20220923 Assignee: Hebei Chunyuan new clean heating technology Co.,Ltd. Assignor: HEBEI CHUNFENG HEATING EQUIPMENT CO.,LTD. Contract record no.: X2022990000702 Denomination of utility model: A preheating circulating system for domestic hot water pipeline of gas heating hot water boiler Granted publication date: 20190917 License type: Common License Record date: 20220923 Assignee: Hebei Sanofi heating equipment Co.,Ltd. Assignor: HEBEI CHUNFENG HEATING EQUIPMENT CO.,LTD. Contract record no.: X2022990000701 Denomination of utility model: A preheating circulating system for domestic hot water pipeline of gas heating hot water boiler Granted publication date: 20190917 License type: Common License Record date: 20220923 |