A description of the research you did online to identify other designs for similar products(They mean a 2-phase stepper motor. More information are provided below) and what you learned from them. This should include a list of any patents studied and links to any articles read online. I expect that you will use multiple types of data sources (reviews, product data sheets, patents, technical papers, etc) and multiple examples of each type of data source.
details of the stepper motor I have:
VEXTA stepping motor
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