350. Exclusive licences.

350.     Exclusive licences.

A licence is said to be exclusive if it is expressed to grant to the grantee the sole right to exercise the liberty granted within the defined limits. If it is not clearly so expressed, the grantor may himself exercise the same right and authorise others to do so1, provided neither he nor they interfere with the operations of the licensee2, nor deprive him of the benefits of his licence3. An exclusive licensee may maintain trespass4.