In any claim arising under a policy which has been issued in this state by any life insurance company without previous medical examination, or without the knowledge and consent of the insured, or if said insured is under ten years of age, without the consent of the parent, guardian or other person having legal custody of said minor, the statements made in the application as to age, physical condition and family history of the insured, shall be valid and binding upon the company, but the company shall not be debarred from proving as a defense to such claim that said statements were willfully false, fraudulent or misleading.