Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:company
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:foundedYear |
1909
|
| gptkbp:headquartersLocation |
gptkb:Salem,_Massachusetts
|
| https://www.w3.org/2000/01/rdf-schema#label |
Hygrade Lamp Company
|
| gptkbp:industry |
lighting
|
| gptkbp:mergedInto |
gptkb:Sylvania_Electric_Products
1931 |
| gptkbp:notableProduct |
Hygrade Mazda Lamp
|
| gptkbp:product |
incandescent lamps
|
| gptkbp:successor |
gptkb:Sylvania_Electric_Products
|
| gptkbp:bfsParent |
gptkb:Hygrade_Sylvania_Corporation
|
| gptkbp:bfsLayer |
7
|