TW449222U - Ear phone structure modification - Google Patents
Ear phone structure modificationInfo
- 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
Links
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)
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 |
-
1999
- 1999-12-22 TW TW88221836U patent/TW449222U/en not_active IP Right Cessation
-
2001
- 2001-10-16 TW TW88221836A01 patent/TW508002U/en not_active IP Right Cessation
Cited By (2)
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 |