Original language | English |
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Patent number | US 10/991,358 |
IPC | B32-MG-LFAA-US01 |
Priority date | 2/01/19 |
Filing date | 31/12/19 |
Publication status | Published - 2 Jul 2020 |
User-Defined Keywords
- active noise reduction
- materials
- soft boundaries
- sound absorbing panels
- sound absorption