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Cailiang Dong

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  • Ningbo, CN
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    VIBRATING DEVICE FOR UNIFORM FILLING OF GRANULAR ORNAMENTS
    • Publication number 20130167487
    • Publication date Jul 4, 2013
    • BEIFA GROUP CO., LTD.
    • Cailiang Dong
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    FLAT-PEN AUTOMATIC ASSEMBLY LINE
    • Publication number 20130167371
    • Publication date Jul 4, 2013
    • BEIFA GROUP CO., LTD.
    • Cailiang Dong
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PEN-BARREL HEAT TRANSFERRING DEVICE
    • Publication number 20130169730
    • Publication date Jul 4, 2013
    • BEIFA GROUP CO., LTD.
    • Cailiang Dong
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    FOUNTAIN-PEN AUTOMATIC ASSEMBLY LINE
    • Publication number 20130168202
    • Publication date Jul 4, 2013
    • BEIFA GROUP CO., LTD.
    • Cailiang Dong
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    INK-FILLING MACHINE FOR WRAP-AROUND CORE
    • Publication number 20130167973
    • Publication date Jul 4, 2013
    • BEIFA GROUP CO., LTD.
    • Cailiang Dong
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PEN TIP PEENING MACHINE
    • Publication number 20130167370
    • Publication date Jul 4, 2013
    • BEIFA GROUP CO., LTD.
    • Cailiang Dong
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES