Magnetic screw propulsion system for elevators
US-9878881-B2 · Jan 30, 2018 · US
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Patent family 50776434
This patent family groups 2 related publications across US. Members often share priority claims or equivalent filings in different countries.
| Field | Value |
|---|---|
| Family ID | 50776434 |
| Family type | — |
| Earliest priority | Nov 20, 2012 |
| First filing country | US |
| Member publications | 2 |
| Countries | US |
| Representative publication | US9878881B2 — Magnetic screw propulsion system for elevators |
Representative publication
Best representative member for this family based on priority and filing country.
US9878881B2 — Magnetic screw propulsion system for elevators (published Jan 30, 2018)
Member publications
Related publications in this family.
Magnetic screw propulsion system for elevators
US-2015307325-A1 · Oct 29, 2015 · US