Title:
【考案の名称】管路用閉塞栓
Document Type and Number:
Japanese Patent JPH0561287
Kind Code:
U
Inventors:
Soichiro Ueda
Hideki Nakamura
Hideki Nakamura
Application Number:
JP655692U
Publication Date:
August 13, 1993
Filing Date:
January 23, 1992
Export Citation:
Assignee:
Rokuryo Rubber Co., Ltd.
International Classes:
E03F7/02; F16K39/06; (IPC1-7): E03F7/02; F16K39/06
Domestic Patent References:
| JP52051517B | ||||
| JPS557481U | 1980-01-18 |
Attorney, Agent or Firm:
Ichiichi Shirakawa
Next Patent: FRICTION PRESSURE WELDING METHOD AND ITS DEVICE