Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:person
|
| gptkbp:birthDate |
1896
|
| gptkbp:deathDate |
1980
|
| gptkbp:employer |
gptkb:Bell_Telephone_Laboratories
|
| gptkbp:field |
electrical engineering
|
| gptkbp:knownFor |
quartz clock
|
| gptkbp:nationality |
gptkb:Canadian
|
| gptkbp:notableInvention |
quartz crystal clock
|
| gptkbp:occupation |
gptkb:engineer
gptkb:inventor |
| gptkbp:bfsParent |
gptkb:Quartz_clock
|
| gptkbp:bfsLayer |
8
|
| http://www.w3.org/2000/01/rdf-schema#label |
Warren Marrison
|