ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
E21D0017022000 Auxiliary devices for temporary support of roof-supporting beams whilst assembling 1
E21D0017030000 Brackets for roof-supporting bars 1
E21D0017040000 for use in longwall working 1
E21D0017050000 hydraulically extensible 1
E21D0017054000 hydraulically pivotable 1
E21D0017060000 for use in drifting galleries 1
E21D0017080000 Cap joints for obtaining a coal-face free of pit-props 1
E21D0017082000 of sliding type 1
E21D0017086000 of articulated type 1
E21D0017100000 Details of mine caps for engaging the tops of pit-props, with or without retaining-plates; Retaining-plates 1
E21D0019000000 Provisional protective covers for working space (E21D0009060000, E21D0023000000 take precedence);; 1
E21D0019020000 for use in longwall working 1
E21D0019040000 for use in drifting galleries 1
E21D0019060000 Arrangements for applying the covers 1
E21D0020000000 Setting anchoring-bolts (anchoring bolts for shafts, tunnels or galleries E21D0021000000; means for anchoring structural elements or bulkheads specially adapted to foundation engineering E02D0005740000; dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose F16B0013000000) 1