Name: | Robertson Clock & Instrument Co.; Detroit, MI (USA) |
Abbreviation: | robertson |
Products: | Model types |
Summary: |
The Robertson Clock & Instrument Company was located at 409 East Congress Street in Detroit, Michigan. The company advertised a rotary spark gap in late 1922 QST magazines. |
History: |
?
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This manufacturer was suggested by Alan Larsen.
Country | Year | Name | 1st Tube | Notes |
---|---|---|---|---|
USA | 22 | Robertson-Detroit Chopper |
Data Compliance | More Information |