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Title:
拡声通話装置
Document Type and Number:
Japanese Patent JP4900184
Kind Code:
B2
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Inventors:
Minoru Fukushima
Keiichi Yoshida
Application Number:
JP2007269010A
Publication Date:
March 21, 2012
Filing Date:
October 16, 2007
Export Citation:
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Assignee:
Panasonic Electric Works Co., Ltd.
International Classes:
H04B3/20; H04M1/60; H04R3/02
Domestic Patent References:
JP3709739B2
JP2007194740A
JP6232957A
JP5327560A
JP2006287703A
JP2000307745A
JP10013526A
JP2002359580A
Attorney, Agent or Firm:
Keisei Nishikawa



 
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