【考案の名称】マンホール用耐火ブロック

Title:

【考案の名称】マンホール用耐火ブロック

Document Type and Number:

Japanese Patent JP2586771

Kind Code:

Y2

Inventors:

Tokuda Shigeaki
Kenji Yanagimoto
Takumi Takehara

Application Number:

JP6298792U

Publication Date:

December 09, 1998

Filing Date:

September 08, 1992

Export Citation:

Assignee:

Shinagawa White Brick Co., Ltd.

International Classes:

C21B7/06; C21B9/06; E02D29/12; F23M7/00; F27D1/04; F27D1/18; (IPC1-7): F27D1/18; F23M7/00; F27D1/04

Attorney, Agent or Firm:

Shigeru Yagita (2 outside)

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