| Number | Date | Country | Kind |
|---|---|---|---|
| 004761807 | Mar 2018 | EM | regional |
| Number | Name | Date | Kind |
|---|---|---|---|
| 8896290 | Hammond | Nov 2014 | B2 |
| Number | Date | Country |
|---|---|---|
| 1577202 | May 2017 | JP |
| Entry |
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| Incom Company Limited, HA12001829/Industrial Equipment News 2000. |
| Incom Company Limited, HA16022503/Industrial Equipment News 2004. |
| Kistler et al; HC16036027/Piezoelectric sensors (Quartz based). |