Drilldown: Patents

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Patents > Tech fields : construction or lift & CPCs : CPC B64C23/005 or None & First filing: Yes

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Inventors:
None (12) · Carl Franz Hubert Hertel (2) · Carl Wilhelm Paul (2) · Henry Shepley Booth (2) · Adolphe-François-Joseph Doutre (2)
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Applicant person:
None (13) · Carl Franz Hubert Hertel (2) · Carl Wilhelm Paul (2) · Henry Shepley Booth (2) · Adolphe-François-Joseph Doutre (2)
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None (63)
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CPCs: (Click arrow to add another value)
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Citations from after 1930:
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