Title:
ENVIRONMENT FRIENDLY LEAD SHARPENER FOR PROPELLING PENCIL
Document Type and Number:
WIPO Patent Application WO/1999/034987
Kind Code:
A1
Abstract:
This invention relates to an environment friendly lead sharpener for sharpening a propelling pencil having a lead core. The blade of the said sharpener is formed into V-shape by folding a rectangular metal piece which has one or two knife-edges. There is a hole on the end surface of the main body of the sharpener for discharging the scraps, and a soft mat and cover is fixed on the said end surface for collecting the scraps.
Inventors:
WANG DIANJUN (CN)
WANG GUOLING (CN)
WANG GUOYU (CN)
WANG GUOFENG (CN)
WANG GUOYUE (CN)
WANG GUOLING (CN)
WANG GUOYU (CN)
WANG GUOFENG (CN)
WANG GUOYUE (CN)
Application Number:
PCT/CN1998/000050
Publication Date:
July 15, 1999
Filing Date:
March 26, 1998
Export Citation:
Assignee:
WANG DIANJUN (CN)
WANG GUOLING (CN)
WANG GUOYU (CN)
WANG GUOFENG (CN)
WANG GUOYUE (CN)
WANG GUOLING (CN)
WANG GUOYU (CN)
WANG GUOFENG (CN)
WANG GUOYUE (CN)
International Classes:
B43K29/06; B43L23/06; (IPC1-7): B43L23/06; B43K29/06
Foreign References:
| CN2183893Y | 1994-11-30 | |||
| EP0170451A1 | 1986-02-05 | |||
| CN2259290Y | 1997-08-13 | |||
| CN1086769A | 1994-05-18 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (2 Fuchengmenwai Street, Beijing 7, CN)
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