Upon the issuance of the decree of adoption and forever thereafter, all the duties, rights, privileges and obligations recognized by law between parent and child shall exist between the petitioner or petitioners and the person or persons adopted, as fully and to all intents and purposes as if such person or persons were the lawful and natural offspring or issue of the petitioner or petitioners.

27 Del. Laws, c. 263, §§ ?1-3; Code 1915, § ?3067; Code 1935, § ?3553; 13 Del. C. 1953, § ?954;