Item sets
Rights is exactly
Courtesy of the National Archives.
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W100A-FPatent and Trademark Office[W100A-F] Record Group 241 — Caveats[W100A-F] Record Group 241 — Caveats -
W100C-FPatent and Trademark Office[W100C-F] Record Group 241 — Libers of Patent Assignments[W100C-F] Record Group 241 — Libers of Patent Assignments