ดาวน์โหลด

ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ

รหัส / code คำอธิบาย / code name Version
H04M0003540000 Arrangements for diverting calls for one subscriber to another predetermined subscriber 1
H04M0003560000 Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities (video conference systems H04N0007150000) 1
H04M0003580000 Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party (substation line holding circuits H04M0001800000) 1
H04M0003600000 Semi-automatic systems, i.e. systems in which the numerical selection of the outgoing line is under the control of an operator 1
H04M0003620000 Keyboard equipment 1
H04M0003640000 Arrangements for signalling the number or class of the calling line to the operator (between operators in inter-exchange working H04M0005180000) 1
H04M0005000000 Manual exchanges (substation equipment in general H04M0001000000) 1
H04M0005020000 Constructional details (jacks, jack-plugs H01R0024580000) 1
H04M0005040000 Arrangements for indicating calls or supervising connections for calling or clearing 1
H04M0005060000 affording automatic call distribution 1
H04M0005080000 using connecting means other than cords 1
H04M0005100000 using separate plug for each subscriber 1
H04M0005120000 Calling substations, e.g. by ringing 1
H04M0005140000 Applications of speech amplifiers 1
H04M0005160000 with means for reducing interference; with means for reducing effects due to line faults 1
จำนวนรหัสข้อมูล 15 จาก 73902