【考案の名称】水中における作業空間創出維持装置

Title:

【考案の名称】水中における作業空間創出維持装置

Document Type and Number:

Japanese Patent JPH09119

Kind Code:

U

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Inventors:

Hiroshi Hirata

Application Number:

JP953196U

Publication Date:

March 11, 1997

Filing Date:

August 29, 1996

Export Citation:

Assignee:

Hiroshi Hirata

International Classes:

E02B3/06; E02D19/04; E02D25/00; E04G3/00; (IPC1-7): E02D25/00; E02B3/06; E02D19/04; E04G3/04

Domestic Patent References:

Attorney, Agent or Firm:

Yasuo Mihara

Next Patent: 下げぶりで見る光を利用した水平き