by any person claiming to be the true and first inventor of the invention;
by any person being the assignee of the person claiming to be the true and first inventor in respect of the right to make such an application;
by the legal representative of any deceased person who immediately before his death was entitled to make such an application.
(2)
An application under sub-section (1) may be made by any of the persons referred to therein either alone or jointly with any other person.