ZYGLO
EQUIPMENT-NAMELY, TANK FOR HOLDING A LIQUID PENETRANT, A TANK FOR HOLDING A LIQUID EMULSIFYING AGENT, A VESSEL FOR CONTAINING A DRY DEVELOPER POWDER, DRAIN BOARDS ASSOCIATED WITH SAID TANKS, AND BLACK LIGHT INSPECTION BOOTHS SOLD AS A UNIT, FOR THE TESTING OF ARTICLES FOR SURFACE FLAWS AND DEFECTS
Expired · February 10, 1954 · 71660876 ·