ELM 55 - Employee and Labor Relations Manual - Contents 698 Correspondence All correspondence and inquiries relating to inventions and patents should be addressed to the: PATENT COUNSELLAW DEPTUS POSTAL SER..." /> ELM 55 - Employee and Labor Relations Manual - Contents 698 Correspondence All correspondence and inquiries relating to inventions and patents should be addressed to the: PATENT COUNSELLAW DEPTUS POSTAL SER..." />