【発明の名称】管押し込み用複推進機

Title:

【発明の名称】管押し込み用複推進機

Document Type and Number:

Japanese Patent JP2957460

Kind Code:

B2

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Inventors:

NEGISHI YASUO
KISHI AKIO
MATSUNAGA HIROSHI
MYAJI SEIICHI
SHIRAKAWA JUNICHI
SAKURAKOJI TOSHIO

Application Number:

JP3301096A

Publication Date:

October 04, 1999

Filing Date:

January 26, 1996

Export Citation:

Assignee:

SUMITOMO DENKI KOGYO KK
NIPPON DENSHIN DENWA KK
AIRETSUKU GIKEN KK

International Classes:

E21D9/06; E21D9/08; (IPC1-7): E21D9/06; E21D9/08

Domestic Patent References:

Attorney, Agent or Firm:

Hidemi Aoki (1 outside)

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