ดาวน์โหลด

ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ

รหัส / code คำอธิบาย / code name Version
E21C0037060000 by making use of hydraulic or pneumatic pressure in a borehole 1
E21C0037080000 Devices with pistons, plungers, or the like pressed locally against the wall of the borehole 1
E21C0037100000 Devices with expanding elastic casings 1
E21C0037120000 by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid (slitting by jets of water E21C0025600000; blasting by explosives F42D) 1
E21C0037140000 by compressed air; by gas blast; by gasifying liquids 1
E21C0037160000 by fire-setting or by similar methods based on a heat effect (drilling by use of heat E21B0007140000) 1
E21C0037180000 by electricity 1
E21C0037200000 by ultrasonics 1
E21C0037220000 Hand tools or hand-held power-operated tools specially adapted for dislodging minerals (slitting machines guided solely by hand E21C0025640000) 1
E21C0037240000 Pick hammers (pneumatic hammers in general B25D; percussion drilling E21B0001000000) 1
E21C0037260000 Chisels or other cutting tools not mentioned before 1
E21C0039000000 Devices for testing ; in situ the hardness or other properties of minerals, e.g. for giving information as to the selection of suitable mining tools 1
E21C0041000000 Methods of mining or quarrying; Open-pit mining; Layouts therefor 1
E21C0041000000 Methods of underground or surface mining (E21C0045000000 takes precedence);;Layouts therefor (for peat E21C0049000000) 1
E21C0041160000 Methods of underground mining (winning machines therefor E21C0025000000-E21C0039000000); Layouts therefor 1
จำนวนรหัสข้อมูล 15 จาก 73902