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hubei new huaguang information mat… 🛈 | 241 |
ohara | 1 |
xiangyang haicheng technology comp… 🛈 | 1 |
Title of patent family (most common patent title) |
Family members |
Filing year |
---|---|---|
optical glass | 3 | 2011 |
optical glass | 2 | 2014 |
phosphorus crown optical glass with medium refractive index and high abbe number | 2 | 2010 |
environment-friendly low-melting-point optical glass | 2 | 2010 |
stirrer and working crucible | 2 | 2014 |
optical glass moulding die | 2 | 2014 |
preparation method of infrared-transmitting glass spherical cover with big calibre | 2 | 2010 |
high-refractive bifocal sub-sheet optical glass and manufacturing method thereof | 2 | 2010 |
optical glass and preparation method thereof | 2 | 2011 |
optical glass and preparation method thereof | 2 | 2014 |