发明授权
US07741840B1 Magnetic probe 有权
磁性探针

Magnetic probe
摘要:
A magnetic probe includes a tubular container, the inside of which can be observed and at least one end of which is closed, a paramagnetic seed which is fixed to an end of the tubular container, and a paramagnetic colloidal particle dispersion liquid that is filled in the tubular container.
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