Title:
MULTIPURPOSE DRAW-THREAD TYPE FILTER PAPER BAG AND ITS PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2009/117897
Kind Code:
A1
Abstract:
A multipurpose draw-thread type filter paper bag and its production method. The filter paper bag is composed of a filter paper and a draw-thread. The opening of the filter bag can be closed by drawing the draw-thread.
Inventors:
ZHAO XIN (CN)
Application Number:
PCT/CN2009/000232
Publication Date:
October 01, 2009
Filing Date:
March 04, 2009
Export Citation:
Assignee:
ZHAO XIN (CN)
International Classes:
A47G19/16; B31B70/00
Foreign References:
| CN101259883A | 2008-09-10 | |||
| CN2253982Y | 1997-05-14 | |||
| US4415597A | 1983-11-15 | |||
| CN200971239Y | 2007-11-07 | |||
| EP0965537A1 | 1999-12-22 | |||
| JP2002337936A | 2002-11-27 | |||
| JP2004149132A | 2004-05-27 |
Attorney, Agent or Firm:
LIAN & LIEN IP ATTORNEYS (10th FloorNo.33 Anding Road,Chaoyang District, Beijing 9, CN)
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