|Name:||Duro Metal Products Co., (Qual-itone); Chicago, Illinois (USA)|
The Duro Metal Products Company was located at 2649 North Klidare Street in Chicago, Illinois.
Trade Name: Quali-Tone
This manufacturer was suggested by Alan Larsen.
|USA||23||Quali-Tone Horn Speaker Style N||Duro Metal Products Quali-Tone Style N Horn Speaker with a 9.5" bell|
|USA||23||Quali-Tone Horn Speaker Style E||Duro Metal Products Quali-Tone Style E Horn Speaker|
|USA||24||Quali-Tone Collapsible Loop Antenna||Duro Metal Products Quali-Tone Collapsible Loop Antenna|
|USA||23||Quali-Tone Horn Speaker Junior||Duro Metal Products Quali-Tone Junior Horn Speaker|
|USA||23||Quali-Tone Horn Speaker Style 1-R||Duro Metal Products Quali-Tone 1-R Horn Speaker with a fiber bell|