Force multiplyer used to actuate a ball valve
US-10428622-B2 · Oct 1, 2019 · US
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Smith James A patents in 2019
Smith James A was listed as an assignee on 3 patent publications in 2019.
| Metric | Value |
|---|---|
| Company | Smith James A |
| Year | 2019 |
| Patents | 3 |
Patents
Representative publications for Smith James A in 2019.
Top CPC classifications
Most common classification codes for Smith James A in 2019.
| CPC | Patents |
|---|---|
| E21B2034/002 | 2 |
| E21B2034/007 | 2 |
| E21B2200/04 | 2 |
| E21B2200/06 | 2 |
| E21B23/006 | 2 |
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