CN210305852U - 一种防护密闭门的打孔设备 - Google Patents
一种防护密闭门的打孔设备 Download PDFInfo
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CN112719356A (zh) * | 2020-12-28 | 2021-04-30 | 施崇玉 | 一种钢管加工用跟随型连续打孔装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112719356A (zh) * | 2020-12-28 | 2021-04-30 | 施崇玉 | 一种钢管加工用跟随型连续打孔装置 |
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GR01 | Patent grant | ||
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CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Zhu Pingliang Inventor after: Zhu Minshen Inventor after: Zhang Shengtao Inventor after: Cheng Kai Inventor after: Chen Yan Inventor after: Zhu Chenhui Inventor before: Zhu Pingliang Inventor before: Zhu Minshen Inventor before: Zhang Shengtao Inventor before: Chen Kai Inventor before: Chen Yan Inventor before: Zhu Chenhui |
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CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 314400 Shuangfei Road, Haichang Street, Haining City, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Kaida civil air defense equipment Co., Ltd Address before: 314400 Shuangfei Road, Haichang Street, Haining City, Jiaxing City, Zhejiang Province Patentee before: HAINING KAIDA CIVIL AIR DEFENSE EQUIPMENT Co.,Ltd. |