JP2021189321A5 - - Google Patents

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Publication number
JP2021189321A5
JP2021189321A5 JP2020095185A JP2020095185A JP2021189321A5 JP 2021189321 A5 JP2021189321 A5 JP 2021189321A5 JP 2020095185 A JP2020095185 A JP 2020095185A JP 2020095185 A JP2020095185 A JP 2020095185A JP 2021189321 A5 JP2021189321 A5 JP 2021189321A5
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JP
Japan
Prior art keywords
megaphone
loudspeaker
splash
catcher
small diameter
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Application number
JP2020095185A
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English (en)
Japanese (ja)
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JP2021189321A (ja
JP7288733B2 (ja
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Priority to JP2020095185A priority Critical patent/JP7288733B2/ja
Priority claimed from JP2020095185A external-priority patent/JP7288733B2/ja
Publication of JP2021189321A publication Critical patent/JP2021189321A/ja
Publication of JP2021189321A5 publication Critical patent/JP2021189321A5/ja
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Publication of JP7288733B2 publication Critical patent/JP7288733B2/ja
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JP2020095185A 2020-06-01 2020-06-01 メガホンの製造方法 Active JP7288733B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2020095185A JP7288733B2 (ja) 2020-06-01 2020-06-01 メガホンの製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020095185A JP7288733B2 (ja) 2020-06-01 2020-06-01 メガホンの製造方法

Publications (3)

Publication Number Publication Date
JP2021189321A JP2021189321A (ja) 2021-12-13
JP2021189321A5 true JP2021189321A5 (enrdf_load_stackoverflow) 2022-06-13
JP7288733B2 JP7288733B2 (ja) 2023-06-08

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ID=78849616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020095185A Active JP7288733B2 (ja) 2020-06-01 2020-06-01 メガホンの製造方法

Country Status (1)

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JP (1) JP7288733B2 (enrdf_load_stackoverflow)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6070894U (ja) * 1983-10-20 1985-05-18 大日本印刷株式会社 メガホン
JPH0394600U (enrdf_load_stackoverflow) * 1989-07-07 1991-09-26
JP3155506U (ja) * 2009-09-07 2009-11-19 とし子 金子 補聴器
US8636102B1 (en) * 2012-10-17 2014-01-28 Tony Porco Voice amplification assembly

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