ClassOfInanimatePhysicalObject
http://data.posccaesar.org/rdl/RDS5994436
| hasCreationDate | 1999.06.24 |
|---|---|
| hasCreator | u20645 |
| hasDefinition | A 'rock drill bit' where the cutting tool is formed as a fish tail |
| hasDesignation | FISHTAIL DRILL BIT |
| hasIdPCA | RDS5994436 |
| hasNote | Fishtail bits became obsolete in 1909 when Howard Hughes Sr. introduced the twin-cone roller bit. |
| hasStatus | Recorded |
| Resource | Via |
|---|---|
| RDS5994481 | hasSubclass |