Invention Day (Japan)

Happens annually on April 18th.

Frequency:
Every
Apr 18
Hashtags:
References:
www.jpo.go.jp/seido_e/rekishi_e/hatsumeie.htm
facebook.com/…/?type=3
twitter.com/JapanGov/status/854275523387637761

April 2022

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See Also:

Inventors' Day (Mexico)