Charles and Albert Harris modeled their press "on a rotary letter press machine".

Entity and relation annotations:
id: 0
type: entity
value: text: Charles 
labels: <Person>
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type: entity
value: text: Albert Harris
labels: <Person>
id: 2
type: entity
value: text: "on a rotary letter press machine"
labels: <Production>
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labels: Person:business/work:Person
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type: relation
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labels: Person:owns/uses:Production
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type: relation
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labels: Person:owns/uses:Production
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