The broken lines are for purposes of illustrating portions of the pneumatic safety valve that form no part of the claimed design.
The broken lines are for purposes of illustrating portions of the pneumatic safety valve that form no part of the claimed design.
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|---|---|---|---|
| 3432904 | Stewart | Mar 1969 | A |
| D390916 | Valenzuela | Feb 1998 | S |
| 5746243 | Franke | May 1998 | A |
| D685877 | Nemoto | Jul 2013 | S |
| D745638 | Hickman | Dec 2015 | S |
| D883914 | Johnson | May 2020 | S |
| D986926 | Perotti | May 2023 | S |
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| 20200040919 | Kirchner | Feb 2020 | A1 |