Shibahara; Shigeyoshi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Shibahara; Shigeyoshi.The latest application filed is for "underground pipe for a thrust boring method and a connecting construction of the underground pipe for the same".
- Shibahara; Shigeyoshi - Shiga JP
| Patent | Date |
|---|---|
| Underground pipe for a thrust boring method and a connecting construction of the underground pipe for the same Grant 5,104,263 - Shibahara , et al. April 14, 1 | 1992-04-14 |
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