Acc.#1998.0191 Danko - page 11 AC#667


Image of selective soldering
UNCLASSIFIED

SELECTIVE SOLDERING. (Experimental)
Solder Resist as Applied to Pre-Fabricated Conductive Patterns

Group Overall View. Showing Process Steps.

August 30, 1951 Signal Corps Engineering Laboratories, image#32777

COMMENT:
This image was taken by the Signal Corps and appears as if the actual circuit boards were laid upon prepared text paper then photographed.


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National Museum of American History


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