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History of the manufacturer  

Robertson Clock & Instrument Co.; Detroit, MI

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Name: Robertson Clock & Instrument Co.; Detroit, MI    (USA)  
Abbreviation: robertson
Products: Model types

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.


This manufacturer was suggested by Alan Larsen.

Some models:
Country Year Name 1st Tube Notes
USA  22 Robertson-Detroit Chopper    


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