ดาวน์โหลด

ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ

รหัส / code คำอธิบาย / code name Version
E21D0020020000 with provisions for grouting 1
E21D0021000000 Anchoring-bolts for roof, floor, or shaft-lining protection (dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose F16B0013000000) 1
E21D0021020000 having means for indicating tension (screwed connections specially modified for indicating tensile load F16B0031020000) 1
E21D0023000000 Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyors, mining machines or guides therefor (shifting of mine conveyors at the working face, per se E21F0013080000) 1
E21D0023030000 having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support 1
E21D0023040000 Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor (E21D0023140000 takes precedence);; 1
E21D0023060000 Special mine caps or special tops of pit-props for permitting step-by-step movement 1
E21D0023080000 Advancing mechanisms (E21D0023160000 takes precedence);; 1
E21D0023100000 with advancing devices separate from the supporting construction 1
E21D0023120000 Control, e.g. using remote control (E21D0023160000 takes precedence);; 1
E21D0023140000 Effecting automatic sequential movement of supports, e.g. one behind the other 1
E21D0023160000 Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices 1
E21D0023180000 of advancing mechanisms 1
E21D0023200000 for sequential movement, e.g. one behind the other 1
E21D0023220000 incorporated in mine caps 1
จำนวนรหัสข้อมูล 15 จาก 73902