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Title:
【考案の名称】二層管の管継手
Document Type and Number:
Japanese Patent JP2567514
Kind Code:
Y2
Inventors:
Ryo Koyama
Hiroshi Nishino
Application Number:
JP4126392U
Publication Date:
April 02, 1998
Filing Date:
June 16, 1992
Export Citation:
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Assignee:
Mitsubishi Plastics Co., Ltd.
Nishihara Sanitation Co., Ltd.
International Classes:
F16L39/00; (IPC1-7): F16L39/00
Attorney, Agent or Firm:
Kumi Kondo



 
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