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=== Launch ===
AD-X2 was launched by the company Pioneers, Inc. on the market in 1947. They never [[patent]]ed the product; they have chosen to keep it a [[trade secret]] instead. In 1948, Ritchie learned about a pamphlet named Letter Circular
In 1948, George W. Vinal, chief of the electrochemistry section of the Electricity Division at NBS, who learned the thing about battery additives over and over again, put the letter written by Pioneers, Inc., aside. The NBBB, which has written about ''Facts About Battery Dopes'', put pressure on Vinal to issue an up-to-date revision of Letter Circular
=== Private test ===
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