TW449222U - Ear phone structure modification - Google Patents

Ear phone structure modification

Info

Publication number
TW449222U
TW449222U TW88221836U TW88221836U TW449222U TW 449222 U TW449222 U TW 449222U TW 88221836 U TW88221836 U TW 88221836U TW 88221836 U TW88221836 U TW 88221836U TW 449222 U TW449222 U TW 449222U
Authority
TW
Taiwan
Prior art keywords
structure modification
ear phone
phone structure
ear
modification
Prior art date
Application number
TW88221836U
Other languages
Chinese (zh)
Inventor
Ching-Guo Juang
Original Assignee
Juang Ching Guo
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 by Juang Ching Guo filed Critical Juang Ching Guo
Priority to TW88221836U priority Critical patent/TW449222U/en
Publication of TW449222U publication Critical patent/TW449222U/en
Priority to TW88221836A01 priority patent/TW508002U/en

Links

TW88221836U 1999-12-22 1999-12-22 Ear phone structure modification TW449222U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW88221836U TW449222U (en) 1999-12-22 1999-12-22 Ear phone structure modification
TW88221836A01 TW508002U (en) 1999-12-22 2001-10-16 Improved structure of earphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW88221836U TW449222U (en) 1999-12-22 1999-12-22 Ear phone structure modification

Publications (1)

Publication Number Publication Date
TW449222U true TW449222U (en) 2001-08-01

Family

ID=21657754

Family Applications (2)

Application Number Title Priority Date Filing Date
TW88221836U TW449222U (en) 1999-12-22 1999-12-22 Ear phone structure modification
TW88221836A01 TW508002U (en) 1999-12-22 2001-10-16 Improved structure of earphone

Family Applications After (1)

Application Number Title Priority Date Filing Date
TW88221836A01 TW508002U (en) 1999-12-22 2001-10-16 Improved structure of earphone

Country Status (1)

Country Link
TW (2) TW449222U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108383041A (en) * 2018-05-08 2018-08-10 苏州艾沃意特机械设备制造有限公司 Vehicle lift structure and shearing type lifter
US11985463B2 (en) 2017-11-20 2024-05-14 Apple Inc. Headphones with increased back volume

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11985463B2 (en) 2017-11-20 2024-05-14 Apple Inc. Headphones with increased back volume
CN108383041A (en) * 2018-05-08 2018-08-10 苏州艾沃意特机械设备制造有限公司 Vehicle lift structure and shearing type lifter

Also Published As

Publication number Publication date
TW508002U (en) 2002-10-21

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Legal Events

Date Code Title Description
GD4K Issue of patent certificate for granted utility model filed before june 30, 2004
MC4K Revocation of granted utility model