CN210501958U - 一种防近视作业簿 - Google Patents
一种防近视作业簿 Download PDFInfo
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- CN210501958U CN210501958U CN201822174364.8U CN201822174364U CN210501958U CN 210501958 U CN210501958 U CN 210501958U CN 201822174364 U CN201822174364 U CN 201822174364U CN 210501958 U CN210501958 U CN 210501958U
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- 208000001491 myopia Diseases 0.000 title claims abstract description 17
- 230000004379 myopia Effects 0.000 claims abstract description 9
- 230000002265 prevention Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001045 blue dye Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000011148 porous material Substances 0.000 description 1
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CN201822174364.8U CN210501958U (zh) | 2018-12-24 | 2018-12-24 | 一种防近视作业簿 |
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CN201822174364.8U CN210501958U (zh) | 2018-12-24 | 2018-12-24 | 一种防近视作业簿 |
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Effective date of registration: 20210727 Address after: 710000 unit 602, 6 / F, building T5, Lai'an center, No. 1111, Yanzhan Road, Qujiang New District, Xi'an City, Shaanxi Province Patentee after: Xi'an meishenggao Stationery Co.,Ltd. Address before: 710000 No. 1, floor 6, unit 1, building 16, No. 88, Yannan Fourth Road, Yanta District, Xi'an City, Shaanxi Province Patentee before: Liu Bifang |
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Effective date of registration: 20240902 Address after: 710000 No. 1, floor 6, unit 1, building 16, No. 88, Yannan Fourth Road, Yanta District, Xi'an City, Shaanxi Province Patentee after: Liu Bifang Country or region after: China Address before: 710000 unit 602, 6 / F, building T5, Lai'an center, No. 1111, Yanzhan Road, Qujiang New District, Xi'an City, Shaanxi Province Patentee before: Xi'an meishenggao Stationery Co.,Ltd. Country or region before: China |