Dictograph

American  

[dik-tuh-graf, -grahf] / ˈdɪk təˌgræf, -ˌgrɑf /

Trademark.

1. a brand name for a telephonic device with a highly sensitive transmitter obviating the necessity of a mouthpiece: used for listening to conversations secretly or obtaining a record of them.

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Dictograph British  

/ ˈdɪktəˌɡrɑːf, -ˌɡræf /

noun

1. a telephonic instrument for secretly monitoring or recording conversations by means of a small, sensitive, and often concealed microphone

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Example Sentences

Announced for early marketing by both Dictograph Products Co.,

From Time Magazine Archive

Archie Andrews' Dictograph Products Co. was appealing a patent case before Judge Manton at the time.

From Time Magazine Archive

Dictograph held that these differences were essential and that the Schick patent had been anticipated, anyway, by an English inventor named Appleyard in 1913.

From Time Magazine Archive

At the federal penitentiary at Danbury, Conn., the Dictograph Corp. sponsors a training program for micro-soldering of hearing aids, then employs the trained convicts after their release.

From Time Magazine Archive

This would explain why the Dictograph set up by the private detectives working for Mollie Burkhart’s family had never picked up any incriminating statements, and why Rose’s clothes had never been found in the creek.

From "Killers of the Flower Moon" by David Grann