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Patents > National tech categories : USPC 244/151R or None & CPCs: CPC B64C33/02

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None (3) · William Henry Kelly (3) · August Keller (2) · John Valentine Janin (2) · Friedrich Kopsch (2) · James Dennis Roots (2) · Alfred Theodor Zeise (2) · William Frederic SAUNT (2)
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None (3) · William Henry Kelly (3) · Alfred Theodor Zeise (2) · SAUNT William FREDERIC (2) · Friedrich Kopsch (2) · John Valentine Janin (2) · James Dennis Roots (2)
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None (4)
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