Category:20th-century inventions

Source: Wikipedia, the free encyclopedia.

15th
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25th

Subcategories

This category has only the following subcategory.

P

20th-century percussion instruments‎ (21 P)

Pages in category "20th-century inventions"

The following 115 pages are in this category, out of 115 total. This list may not reflect recent changes.

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I

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Kaplan turbine

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