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Patents > CPCs : CPC B64C23/005 or CPC B64C33/02 & Number of diagram pages: 2-9

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None (233) · Indiana (4) · Chicago (4) · New York county (3) · Seine-et-Oise (3) · Cleveland (3) · Minnesota (3) · Missouri (3)
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None (252) · Patent BE-1910-12-28-Muehter (3) · Patent DE-1907-217533 (2) · Patent DE-1909-244441 (2) · Patent FR-1908-407411 (2)
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None (45) · Victor J. Evans (13) · None (13) · Munn & Co. (10) · C. A. Snow & Co. (8) · Boult, Wade & Tennant (4) · J. Bonnet-Thirion (3) · J. Germain (3) · Joshua R. H. Potts (3) · Marks & Clerk (3)
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None (73) · FR 6.4 (60) · USPC 244/22 (48) · USPC 244/6 (32) · USPC 244/72 (14) · USPC 244/66 (13) · USPC 244/12.1 (11) · DE 77 (6) · FR 6.3 (6) · USPC 244/80 (6) · USPC 244/35R (5) · USPC 244/139 (4) · USPC 244/100R (3) · USPC 244/60 (3) · USPC 244/64 (3)
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