CH70053A - Hearing protection device - Google Patents
Hearing protection deviceInfo
- Publication number
- CH70053A CH70053A CH70053A CH70053DA CH70053A CH 70053 A CH70053 A CH 70053A CH 70053 A CH70053 A CH 70053A CH 70053D A CH70053D A CH 70053DA CH 70053 A CH70053 A CH 70053A
- Authority
- CH
- Switzerland
- Prior art keywords
- protection device
- hearing protection
- hearing
- protection
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH70053T | 1915-02-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH70053A true CH70053A (en) | 1915-08-16 |
Family
ID=4318431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH70053A CH70053A (en) | 1915-02-06 | 1915-02-06 | Hearing protection device |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH70053A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1120632B (en) * | 1960-11-15 | 1961-12-28 | Pfau Wanfried G M B H H | Noise protection device for the human ear |
DE10210004A1 (en) * | 2002-03-07 | 2003-09-18 | Mobalegh Naseri Morteza | Earplugs, assembled of ring with perforated or grid-shaped membrane and various versions of holding facilities |
-
1915
- 1915-02-06 CH CH70053A patent/CH70053A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1120632B (en) * | 1960-11-15 | 1961-12-28 | Pfau Wanfried G M B H H | Noise protection device for the human ear |
DE10210004A1 (en) * | 2002-03-07 | 2003-09-18 | Mobalegh Naseri Morteza | Earplugs, assembled of ring with perforated or grid-shaped membrane and various versions of holding facilities |
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