P used trickery to get D to sign contract. Since then D has accepted and acted on it. P had exclusive right to sell Ds machine. P wasn’t required to buy machines from D
There must be something given in exchange for a promise – that is the mutuality.
Something of value must flow from promisee to promisor (really both must provide something of value).
If they had said I will order at least 3 a year there would have been some consideration. The indirect promise by Dick to sell to T is not supported by any consideration, moving from T, and so is not binding on D.
There was no contract between the 2 parties, and thus no breach occurred when D decided to sell to someone else.