JOINT FILING AGREEMENTJoint Filing Agreement • April 24th, 2018 • GPG SSF Investment • Electromedical & electrotherapeutic apparatus
Contract Type FiledApril 24th, 2018 Company IndustryEach of the undersigned hereby agrees that this Schedule 13D is being filed with the Securities and Exchange Commission on behalf of each of the undersigned pursuant to Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended.