Name: | Silver Shield, Grenpark Tool Co.; New York, NY (USA) |
Abbreviation: | silver-shi |
Products: | Brand |
Summary: |
Grenpark Tool Co. Brand: Silver Shield An advertisement in the February 1931 "Radio Craft" magazines lists 16 Silver Shield tubes as sold by the Grenpark Tool Co. No manufacturer is noted and no other information on this brand has been located. |
History: |
This manufacturer was suggested by Fin Stewart.
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