ดาวน์โหลด

ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ

รหัส / code คำอธิบาย / code name Version
H04M0001274500 using static electronic memories, i.e. memories whose operation does not require relative movement between storage means and a transducer, e.g. chips 1
H04M0001275000 implemented by means of portable electronic directories 1
H04M0001275500 whose contents are provided by optical scanning 1
H04M0001276000 using magnetic recording, e.g. on tape 1
H04M0001278000 using punched cards or tapes 1
H04M0001300000 Devices which can set up and transmit only one digit at a time 1
H04M0001310000 by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses 1
H04M0001315000 Clutches; Spring assemblies; Speed regulators, e.g. centrifugal brakes (H04M0001320000-H04M0001400000;  take precedence);; 1
H04M0001320000 Locking setting devices during transmission to prevent interference by user 1
H04M0001340000 Lost-motion or other arrangements for ensuring a pause between successive digit transmissions 1
H04M0001380000 Pulses transmitted by a movement variably limited by the setting of a stop 1
H04M0001400000 wherein the setting-operation short-circuits or open-circuits the transmitting mechanism during a variable part of a cycle 1
H04M0001500000 by generating or selecting currents of predetermined frequencies or combinations of frequencies 1
H04M0001515000 by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of dc signals of alternating polarity, coded pulses or impedance dialling 1
H04M0001520000 Arrangements wherein a dial or the like is mechanically coupled to a line selector 1
จำนวนรหัสข้อมูล 15 จาก 73902