Electrically controlled and powered submarine rotary corer system |
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| 申请号 | US3516503D | 申请日 | 1968-12-23 | 公开(公告)号 | US3516503A | 公开(公告)日 | 1970-06-23 |
| 申请人 | US INTERIOR; | 发明人 | MAYER ERNEST F; SCHALLER EDWIN S JR; PICKARD FRANK C; BRANNON WARD; | ||||
| 摘要 | |||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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