21. The clerk of the Superior Court or the Inspector General, as the case may be, shall register every registrant whose declaration of registration or constituting act is in conformity with the provisions of this Act by entering in the register the information concerning the registrant described in the first paragraph of section 10 and assigning a registration number to the registrant.
He shall inscribe the registration number and the date of registration on each copy of the declaration of registration or, as the case may be, on the constituting act.