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Title:
排気式自動風管延伸装置
Document Type and Number:
Japanese Patent JP4190090
Kind Code:
B2
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Inventors:
Kazuhiro Hashizume
Junnosuke Tateno
Application Number:
JP15706599A
Publication Date:
December 03, 2008
Filing Date:
June 03, 1999
Export Citation:
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Assignee:
Taisei Corporation
Nippon High Tech Co., Ltd.
International Classes:
E21F1/00; E21F1/06
Domestic Patent References:
JP7158385A
JP3158600A
JP2000154700A
JP2005240B2
JP10018798A
JP3047672U
Attorney, Agent or Firm:
Masatoshi Takano



 
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