JPS62178295U - - Google Patents

Info

Publication number
JPS62178295U
JPS62178295U JP6790886U JP6790886U JPS62178295U JP S62178295 U JPS62178295 U JP S62178295U JP 6790886 U JP6790886 U JP 6790886U JP 6790886 U JP6790886 U JP 6790886U JP S62178295 U JPS62178295 U JP S62178295U
Authority
JP
Japan
Prior art keywords
amplifier
microphone
audio
transmission line
battery power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6790886U
Other languages
English (en)
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP6790886U priority Critical patent/JPS62178295U/ja
Publication of JPS62178295U publication Critical patent/JPS62178295U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Helmets And Other Head Coverings (AREA)
JP6790886U 1986-05-06 1986-05-06 Pending JPS62178295U (enrdf_load_html_response)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6790886U JPS62178295U (enrdf_load_html_response) 1986-05-06 1986-05-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6790886U JPS62178295U (enrdf_load_html_response) 1986-05-06 1986-05-06

Publications (1)

Publication Number Publication Date
JPS62178295U true JPS62178295U (enrdf_load_html_response) 1987-11-12

Family

ID=30907239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6790886U Pending JPS62178295U (enrdf_load_html_response) 1986-05-06 1986-05-06

Country Status (1)

Country Link
JP (1) JPS62178295U (enrdf_load_html_response)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US342579A (en) * 1886-05-25 Nailing-jack
US3427579A (en) * 1966-10-06 1969-02-11 George J Sebesta Underwater communication transducers
JPS4923439U (enrdf_load_html_response) * 1972-06-08 1974-02-27
JPS60160233A (ja) * 1984-01-31 1985-08-21 O D S Marine:Kk 水中通信方法およびその装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US342579A (en) * 1886-05-25 Nailing-jack
US3427579A (en) * 1966-10-06 1969-02-11 George J Sebesta Underwater communication transducers
JPS4923439U (enrdf_load_html_response) * 1972-06-08 1974-02-27
JPS60160233A (ja) * 1984-01-31 1985-08-21 O D S Marine:Kk 水中通信方法およびその装置

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