B01F13/0809

https://patents.google.com/?q=B01F13%2f0809&oq=(B01F13%2f0809)

B01F13/08 Magnetic mixers ; Mixers having magnetically driven stirrers

B01F13/0809 Magnetic mixers ; Mixers having magnetically driven stirrers the mixture being directly submitted to an electromagnetic field without use of a stirrer, e.g. for material comprising ferromagnetic particles, or for molten metal