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HNLMS O 20

1939 O 19-class submarine
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HNLMS O 20

Summary

HNLMS O 20 is a minelaying submarine[1]. It draws 11 Wikipedia views per month (minelaying_submarine category, ranking #8 of 38).[2]

Key Facts

  • HNLMS O 20 is in the country of Netherlands[3].
  • HNLMS O 20's instance of is recorded as minelaying submarine[4].
  • HNLMS O 20's operator is recorded as Royal Netherlands Navy[5].
  • HNLMS O 20's manufacturer is recorded as Wilton-Fijenoord[6].
  • HNLMS O 20's vessel class is recorded as O 19-class submarine[7].
  • HNLMS O 20's country of origin is recorded as Netherlands[8].
  • HNLMS O 20's participated in conflict is recorded as World War II[9].
  • HNLMS O 20's Freebase ID is recorded as /m/09ryp6[10].
  • HNLMS O 20's significant event is recorded as ship launching[11].
  • HNLMS O 20's significant event is recorded as keel laying[12].

Why It Matters

HNLMS O 20 draws 11 Wikipedia views per month (minelaying_submarine category, ranking #8 of 38).[2]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). HNLMS O 20. Retrieved May 3, 2026, from https://4ort.xyz/entity/hnlms-o-20
MLA “HNLMS O 20.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hnlms-o-20.
BibTeX @misc{4ortxyz_hnlms-o-20_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{HNLMS O 20}}, year = {2026}, url = {https://4ort.xyz/entity/hnlms-o-20}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): HNLMS O 20 — https://4ort.xyz/entity/hnlms-o-20 (retrieved 2026-05-03)

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