Fishing - methods, gear, equipments, apparatus, materials 23 Equipment and supplies 19 Farm Machinery 12 Computer input-output equipment 9 Planting equipments 6 Sound 5 Apparatus 4 Arms control and disarmament-Serials 4 Catalogs, Commercial 4 Disarmament 4 Equipment 4 Equipment and Supplies 4 Laboratories, apparatus, equipment 4 Microbiological Techniques 4 Military equipment: Weapons-Serials 4 Military weapons 4 Recording and reproducing 4 Security, International 4 Spraying equipment 4 Agricultural and Forestry Equipment (General) 3 Agriculture and related technologies 3 Auxiliary techniques and procedures-- apparatus, equipment, materials 3 Digital techniques 3 Education 3 Farm machinery 3 Food processing machinery 3 Information technology 3 Pesticide-application equipments 3 Pesticides 3 Planting Equipments 3