Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
coastal defense system
|
| gptkbp:built |
early 20th century
|
| gptkbp:country |
gptkb:United_States
|
| https://www.w3.org/2000/01/rdf-schema#label |
San Francisco Bay minefield
|
| gptkbp:location |
gptkb:San_Francisco_Bay
|
| gptkbp:operatedBy |
gptkb:United_States_Army
|
| gptkbp:purpose |
harbor defense
|
| gptkbp:relatedTo |
gptkb:San_Francisco_Bay_Harbor_Defenses
|
| gptkbp:status |
decommissioned
|
| gptkbp:type |
controlled minefield
|
| gptkbp:usedDuring |
gptkb:World_War_II
|
| gptkbp:bfsParent |
gptkb:Harbor_Defenses_of_San_Francisco
|
| gptkbp:bfsLayer |
7
|