Telephone receivers A 16.1.11

电话听筒

Chinese 电话听筒

English Telephone receivers

Spanish receptores telefónicos

Code: A 16.1.11
Category: 16.1 Telecommunications, sound recording or reproduction, computers
Version: Vienna Classification, 10th edition (VCL 10, in force from 1 Jan 2026); English from the WIPO official text, Chinese is a J&C reference translation