Drilldown: Patents

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Patents > Tech fields: None & Grant date: 1920 - 1929 & IPCs: None

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Inventors:
None (139) · Henry Kleckler (7) · James Vernon Martin (6) · Glenn Hammond Curtiss (6) · George Francis Myers (5) · Harris G Hooper (5) · Charles B. Kirkham (4) · Melville W MIX (4) · Francis J PLYM (3) · Ralph Hazlett UPSON (3) · Jules CESARIO (3) · John William Rapp (3) · Alliott Verdon Roe (3)
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CPCs:
CPC B64C3/00 (31) · CPC B64C39/00 (27) · CPC B64C2700/6295 (24) · CPC B64C17/00 (22) · CPC B64C2700/6233 (20) · CPC B64C23/005 (16) · CPC B64C13/00 (14) · CPC B64C11/04 (12) · CPC B64C35/00 (12) · CPC B64C2700/6256 (11) · CPC B64C2700/6212 (11) · CPC B64C2700/6235 (11) · CPC B64C3/185 (10) · CPC B64B1/00 (10) · CPC B64C3/385 (10) · CPC B64C2700/6274 (9) · CPC B64B1/58 (9)
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