Jackhammer Operator · Split into 521, 705, effective 1945
Predecessor title from the AR 615-26 column: Jackhammer Operator. Suggested conversions/remarks: 521, 705. The table gives no row-level effective date; effectiveTo records the June 1945 manual year.
Sources
- Manual of Military Occupational Specialties, NAVMC 1008-PD, June 1945, Appendix B (Appendix B, printed p. 240 / PDF image p. 246, SSN 339)