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History of the manufacturer  

S & H Laboratories; Chicago, IL

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Name: S & H Laboratories; Chicago, IL    (USA)  
Abbreviation: sh-labor
Products: Model types

S & H Laboratories; Boylston Building, Chicago, IL.

One Receiver "Type 301" known.
Ad in Radio Digest Illustrated, 1922 Jun. 03, p. 15.


This manufacturer was suggested by Hans-Joachim Korn † 16.11.15.

Some models:
Country Year Name 1st Tube Notes
USA  22 Receiving Set No. 301