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Patents > Year granted: 1920 & National tech categories: None & Number of diagram pages: 2-7

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Inventors:
Henry Kleckler (3) · Henry L. Haskell (2) · Douglas Dobbins (2) · Harold D. Peoples (2) · George W. Bidykoffer (2) · Frank Frederick Simons (2) · Nelson W. Dalton (2) · Bertrand F. Kenyon (2)
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Applicant person:
None (7) · Bertrand F. Kenyon (2) · Nelson W. Dalton (2) · John Day De Prez (2) · Henry Kleckler (2) · George W. Bidykoffer (2) · Frank Frederick Simons (2) · Douglas Dobbins (2) · Harold D. Peoples (2)
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None (4)
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Patent agent:
None (8) · John P. Tarbox (6) · None (3) · Chappell & Earl (2) · Lockwood & Lockwood (2) · Moulton & Laurance (2) · A. M. & William Clark (2)
National tech categories: (Click arrow to add another value)
CPCs:
CPC B64C23/005 (6) · CPC B64C2700/6274 (6) · CPC B64C39/00 (4) · CPC B64C13/12 (4) · CPC B64C17/00 (3) · CPC B64C3/00 (3) · CPC B64F2700/6226 (3) · CPC B64C2001/0081 (2) · CPC B64C2001/0063 (2) · CPC B64C39/08 (2) · CPC B64C35/00 (2) · CPC B64C11/32 (2) · CPC B64C2700/6295 (2) · CPC B64C11/04 (2) · CPC B64C11/00 (2) · CPC B64C33/00 (2) · CPC B64C1/00 (2) · CPC B64C2700/6235 (2)
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