CPC Subgroup Additional Only
G10K 2210/32272 Helmholtz resonators
Full Title
Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups > Means > Physical > Resonators > Helmholtz resonators
G10K 2210/32272 Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups > Means > Physical > Resonators > Helmholtz resonators