The “Professional, Technical, Clerical, Mechanical, and Similar Occupations” include professional, managerial, supervisorial, laboratory, research, technical, clerical, office work, and mechanical occupations, such as accountants, agents, appraisers, artists, attendants, audio-visual technicians, bookkeepers, bundlers, billposters, canvassers, carriers, cashiers, checkers, clerks, collectors, communications and sound technicians, compilers, copy holders, copy readers, copy writers, computer programmers and operators, demonstrators and display representatives, dispatchers, distributors, door-keepers, drafters, elevator operators, estimators, editors, graphic arts technicians, guards, guides, hosts, inspectors, installers, instructors, interviewers, investigators, librarians, laboratory workers, machine operators, mechanics, mailers, messengers, medical and dental technicians and technologists, models, nurses, packagers, photographers, porters and cleaners, process servers, printers, proof readers, salespersons and sales agents, secretaries, sign erectors, sign painters, social workers, solicitors, statisticians, stenographers, teachers, telephone, radio-telephone, telegraph and call-out operators, tellers, ticket agents, tracers, typists, vehicle operators, x-ray technicians, their assistants and other related occupations listed as professional, semiprofessional, technical, clerical, mechanical, and kindred occupations.