Version history — § 138b Assistant Secretary of Defense for Research and Engineering

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2 distinct versions of this section's text, oldest first. Each entry is a release point where the text changed. Most release points leave most sections untouched.

1. 113-21 — § 138b Assistant Secretary of Defense for Research and Engineering

   Unchanged through: 113-21, 113-36

2. 113-75not66 — § 138b Assistant Secretary of Defense for Research and Engineering

   Unchanged through: 113-75not66, 113-75, 113-86not79, 113-100u1, 113-103, 113-121, 113-163not159, 113-185, 113-185u1, 113-201, 113-290not235not287, 113-296not287not291not295

   Diff since 113-21

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