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Patents > National tech categories : FR 6.2 or None & Citations from after 1930: 3-12

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Office:
Inventors:
Charles B. Kirkham (4) · Joseph Vanorio (3) · Charles F. Roper (2) · John William Rapp (2) · Henry E. Krammer (2) · Spencer Heath (2) · Charles J. Jones (2)
Inventor country:
Applicant person:
Charles B. Kirkham (4) · John William Rapp (3) · Joseph Vanorio (2) · Charles F. Roper (2) · Charles J. Jones (2) · Henry E. Krammer (2) · Spencer Heath (2)
Applicant type:
Applicant is inventor:
Tech fields:
Full specification filed date:
Application number:
None (32) · 25723218 (2)
Granted:
Publication date:
Related to aircraft:
Patent agent:
None (10) · Munn & Co. (7) · None (6) · John P. Tarbox (6) · Joseph F. O'Brien (3) · Boult, Wade & Tennant (2) · Victor J. Evans (2) · Eric W. Walford (2) · C. A. Snow & Co. (2)
National tech categories: (Click arrow to add another value)
CPCs:
CPC B64C11/343 (6) · CPC B64C11/04 (6) · CPC B64C27/463 (5) · CPC F05B2260/96 (5) · CPC Y02E10/74 (5) · CPC F03D3/00 (4) · CPC B64C11/48 (4) · CPC B64C11/306 (3) · CPC B63H1/26 (3) · CPC B64C13/00 (3) · CPC B63H1/12 (3) · CPC B64B1/00 (3) · CPC B64C3/00 (3) · CPC B64C3/54 (3) · CPC B64C11/006 (3) · CPC B64C11/16 (3) · CPC B64C11/065 (3)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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