Drilldown: Patents

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Patents > Year granted: 1920 - 1929 & CPCs : CPC B64C17/00 or CPC Y10T403/635

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Inventors:
None (7) · James Vernon Martin (3) · Alfred John Macy (3) · Raimund Nimfuehr (2) · Jacob Knappich (2) · Charles B. Kirkham (2) · Erastus E. Winkley (2)
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Applicant person:
None (6) · James Vernon Martin (4) · Alfred John Macy (3) · Erastus E. Winkley (2) · Jacob Knappich (2) · Charles B. Kirkham (2) · Raimund Nimfuehr (2)
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None (3)
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Citations from after 1930:
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Showing below up to 47 results in range #1 to #47.

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