Safety catch / improvement in hoisting apparatus

Otis, E. G. S. c. /. i. i. h. a. (1853). Safety catch / improvement in hoisting apparatus.

Type

Patent

Intellectual base

Primary research

Year

1853

Link

https://patents.google.com/patent/US31128A/en not authoritative

Cited from

mathematics

Cited by

1 citation across 1 artifact.

Each citation links to the sentence it supports in the citing article.

Primes

• Boundedness

  • This sourceBibliography-only (Tier C). [CITATION-FIX: prior 'U.S. Patent No. 7,066' is incorrect; Otis's elevator-safety patent is 31,128.]

Verification

This reference passed the adversarial substantiation pipeline: it was checked to exist and to support the claim it is attached to. See how references were verified.

Registry ID ref:18f44e8c2eff · see in the full table