Calendarby GlyphHistory · Anniversaries
50th anniversary: The international Patent Cooperation Treaty was signed, providing a unified...
Fri, June 19, 2020
6 yr ago
In 1970, The international Patent Cooperation Treaty was signed, providing a unified procedure for filing patent applications to protect inventions in each of its contracting states.
Also on Jun 19, 2020
Source, method and history
- Source
- Wikipedia
- How we know
- Wikipedia "On this day" selected anniversary, 50 years (1970 to 2020).
- Recurs
- annual
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- Changes
- 2026-09-25: added to 2020-06-19