The Google Patents bibliographic record for United States patent 1,089, William Smith Otis's excavating apparatus (the steam shovel), consulted for its publication date.
Facts
PublisherGoogle Patents / United States Patent Office
URLhttps://patents.google.com/patent/US1089A/en
Source TypeReference Work
Reliability Tier1
Sources
William Otis Steam Shovel Patent US1089 (Google Patents)
Google Patents / United States Patent Office- Bibliographic record
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View the Source Claims Backed By This Source (11 claims)
This source backs 11 claims across the atlas. As facts: 7 well-attested. As cited relationships: 2 holds. Plus 2 entities citing it as a general reference with no single fact or relationship attached.
Disposition By Topic
- Sources, 5 claims: 5 well-attested.
- Engineers, 4 claims: 1 well-attested, 2 holds, 1 general references.
- Inventions, 2 claims: 1 well-attested, 1 general references.
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