Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:company
|
| gptkbp:activePeriod |
19th century
|
| gptkbp:contributedTo |
U.S. engineering standards
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:foundedBy |
gptkb:William_Sellers
|
| https://www.w3.org/2000/01/rdf-schema#label |
William Sellers & Co.
|
| gptkbp:industry |
manufacturing
|
| gptkbp:location |
gptkb:Philadelphia
|
| gptkbp:notableEmployee |
gptkb:William_Sellers
|
| gptkbp:notableFor |
standardization of screw threads
machine tool manufacturing |
| gptkbp:product |
machine tools
pulleys hydraulic machinery gearing shafting steam hammers |
| gptkbp:bfsParent |
gptkb:William_Sellers
|
| gptkbp:bfsLayer |
5
|