METHOD OF NEW PIPE CONSTRUCTION UTILIZING OIL EXISTING PIPE AND INTAKE AND DRAIN PIPE FOR INSERTING OLD EXISTING PIPE

Title:

METHOD OF NEW PIPE CONSTRUCTION UTILIZING OIL EXISTING PIPE AND INTAKE AND DRAIN PIPE FOR INSERTING OLD EXISTING PIPE

Document Type and Number:

Japanese Patent JPS631882

Kind Code:

A

Inventors:

HAYASHI YUKIO

Application Number:

JP14498486A

Publication Date:

January 06, 1988

Filing Date:

June 23, 1986

Export Citation:

Assignee:

TOKYO KYUEI KK

International Classes:

E02B9/06; E02F5/10; F16L1/00; F16L1/038; (IPC1-7): E02D29/10; F16L1/00

Domestic Patent References:

Attorney, Agent or Firm:

Takahiko Suga

Next Patent: DEW CONDENSATION PREVENTING POLYCARBONATE LAMINATED SHEET