Category:Speaking tubes

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Tubo acústico (es); 伝声管 (ja); Tube acoustique (fr); Talrör (sv); spreekbuis (nl); tub acústic (ca); 전성관 (ko); speaking tube (en); 通話管 (zh) voicepipe (en); Tubo acustico (es); Tuyau acoustique (fr); Telèfon acústic, Canonada acústica (ca)

Media in category "Speaking tubes"

The following 33 files are in this category, out of 33 total.