Source
William Otis (Wikipedia)
Wikipedia
The Wikipedia article on William Otis, consulted for the exact February 24, 1839 date of his steam shovel patent.
Facts
AuthorWikipedia contributors
PublisherWikimedia Foundation
URLhttps://en.wikipedia.org/wiki/William_Otis
Source TypeReference Work
Reliability Tier2
Sources
William Otis (Wikipedia)
Claims Backed By This Source (8 claims)
This source backs 8 claims across the atlas. As facts: 7 well-attested. Plus 1 entities citing it as a general reference with no single fact or relationship attached.
Disposition By Topic
- Sources, 6 claims: 6 well-attested.
- Inventions, 2 claims: 1 well-attested, 1 general references.
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