Properties (11)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
patent
|
| gptkbp:applicationNumber |
unknown
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:description |
improvement in the construction of machines for making nails.
|
| gptkbp:fieldOfUse |
mechanical engineering
|
| https://www.w3.org/2000/01/rdf-schema#label |
U.S. Patent 1647
|
| gptkbp:issuedBy |
gptkb:John_A._McCulloch
|
| gptkbp:issuedOn |
1840-06-23
|
| gptkbp:patentNumber |
1647
|
| gptkbp:patentType |
utility
|
| gptkbp:status |
expired
|