Title:
【発明の名称】ケーブル保護管
Document Type and Number:
Japanese Patent JP3331376
Kind Code:
B2
Abstract:
A synthetic resin corrugated pipe includes a pipe wall (1) having an annularly- or helically-shaped convex-concave surface (2,3). The convex-concave surface has a plurality of convex portions (2) having a quadrangular cross-sectional shape and a plurality of concave portions (3) having a circular cross-sectional shape.
Inventors:
Shiro Kaneo
Application Number:
JP5060295A
Publication Date:
October 07, 2002
Filing Date:
February 14, 1995
Export Citation:
Assignee:
Shigeki Kanao
Totaku Industry Co., Ltd.
Totaku Industry Co., Ltd.
International Classes:
F16L9/00; F16L11/11; F16L9/06; F16L25/00; G02B6/44; (IPC1-7): F16L11/11
Domestic Patent References:
| JP317498U | ||||
| JP71388U |
Attorney, Agent or Firm:
Yataro Sato