[s_dev]

>reversing a product for repair purposes verses reversing it for duplication

What about reverse engineering for curiosity or even posterity repair?

Also how is intent of reverse engineering determined?

[whatshisface]

It's determined by what you do next - start making a competing product, or start making a complementary product.

[fragmede]

Or in this case, sue the company producing the device and (further) threaten your franchisees with (both litigious and economic) harm if they use the product.