Factorio Forums

I don't know intentional or not, but storage chest can be researched twice. As far as I am concerned, they are the same. Screenshots: http://imgur.com/BeHG2rl (Showing that I have it researched), http://imgur.com/bmHAgR2 (another research available), http://imgur.com/yLcYsoT (can build storage chest with only one of the researches completed).

Thanks for the report,

It is intentional that both construction and logistic bot researches unlock the storage chest,
But i will remove it from the trash slots, as it is redundant