CN209279392U - 电热真空炉 - Google Patents
电热真空炉 Download PDFInfo
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- CN209279392U CN209279392U CN201822186640.2U CN201822186640U CN209279392U CN 209279392 U CN209279392 U CN 209279392U CN 201822186640 U CN201822186640 U CN 201822186640U CN 209279392 U CN209279392 U CN 209279392U
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- electric heater
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CN201822186640.2U CN209279392U (zh) | 2018-12-25 | 2018-12-25 | 电热真空炉 |
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CN201822186640.2U CN209279392U (zh) | 2018-12-25 | 2018-12-25 | 电热真空炉 |
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CN209279392U true CN209279392U (zh) | 2019-08-20 |
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GR01 | Patent grant | ||
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TR01 | Transfer of patent right |
Effective date of registration: 20200928 Address after: 100000 Beijing city Dongcheng District No. 16 Andrew Patentee after: PetroChina Co.,Ltd. Address before: 063200, 261, Xincheng Avenue, Caofeidian District, Hebei, Tangshan City Patentee before: TANGSHAN JIDONG PETROLEUM MACHINERY Co.,Ltd. |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201014 Address after: No.10 Guoan Road, comprehensive bonded zone, Caofeidian Industrial Zone, Tangshan City, Hebei Province Patentee after: TANGSHAN JIDONG PETROLEUM MACHINERY Co.,Ltd. Patentee after: PetroChina Co.,Ltd. Address before: 100000 Beijing city Dongcheng District No. 16 Andrew Patentee before: PetroChina Co.,Ltd. |