Title:
【考案の名称】マンホール用地下埋設管
Document Type and Number:
Japanese Patent JP3048837
Kind Code:
U
Inventors:
Toshimasa Nakabayashi
Application Number:
JP1054297U
Publication Date:
May 29, 1998
Filing Date:
November 13, 1997
Export Citation:
Assignee:
Toshimasa Nakabayashi
International Classes:
(IPC1-7): E02D29/12; E03F3/04
Attorney, Agent or Firm:
Naokuni Chino