Which invention helped pick the seeds out of the cotton?

Amain difference between state and federal courts is state courts try disputes between states, while federal courts try cases between citizens of a state. state courts try cases between citizens of a state, while federal courts try disputes between states. state courts consider the facts and law in making a decision, while federal courts consider the law, facts, and precedents. state courts consider the facts and precedents in a decision, while federal courts consider the law, facts, and precedents.