CN213659783U - 一种力学主题科普教育资源包 - Google Patents
一种力学主题科普教育资源包 Download PDFInfo
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- CN213659783U CN213659783U CN202021827406.4U CN202021827406U CN213659783U CN 213659783 U CN213659783 U CN 213659783U CN 202021827406 U CN202021827406 U CN 202021827406U CN 213659783 U CN213659783 U CN 213659783U
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Denomination of utility model: A Mechanics Theme Popular Science Education Resource Package Effective date of registration: 20220922 Granted publication date: 20210709 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Xi'an Hangmei Engineering Technology Development Co.,Ltd. Registration number: Y2022610000621 |
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Date of cancellation: 20230928 Granted publication date: 20210709 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Xi'an Hangmei Engineering Technology Development Co.,Ltd. Registration number: Y2022610000621 |