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April 1, 2024
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Hitachi Patent Division (jan 1, 1930 – dec 31, 1930)

Description:

In 1930 Hitachi developed a division with information on every patent granted in Japan since 1889. This made it easier for Japanese companies to select which patents they needed to borrow from others.

Added to timeline:

14 Feb 2018
0
0
316
Japan Science

Date:

jan 1, 1930
dec 31, 1930
~ 12 months

Images:

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