Drilldown: Patents

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Patents > Tech fields : boilers or propeller & Number of claims: 1-5

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None (197)
Granted:
Supplementary to patent:
None (278) · Patent FR-1904-340154 (4) · Patent GB-1911-5162 (4) · Patent GB-1909-12556 (3) · Patent DE-1913-293131 (3) · Patent FR-1908-405961 (3) · Patent FR-1902-328044 (3) · Patent DE-1913-290120 (3) · Patent FR-1909-410140 (3) · Patent DE-1893-73799 (2) · Patent DE-1907-194165 (2) · Patent GB-1908-13809 (2) · Patent DE-1899-123884 (2) · Patent GB-1905-1140 (2) · Patent US-1906-850616 (2) · Patent FR-1904-340154.4984 (2) · Patent CA-1909-126457 (2)
Related to aircraft:
Patent agent:
None (157) · Victor J. Evans (11) · Munn & Co. (9) · None (6) · Haseltine, Lake & Co. (4) · Marks & Clerk (3) · Schwab (3) · Abel & Imray (3) · H. C. Everett Co. (3) · Watson E. Coleman (3) · C. A. Snow & Co. (3) · E. Blum & Co. (3)
National tech categories:
None (94) · DE 77h.6 (30) · FR 6.4 (28) · AT 77d (17) · DE 77 (10) · RU Group V (8) · USPC 244/6 (8) · DE 77h.5 (8) · USPC 244/30 (6) · USPC 244/22 (6) · USPC 244/60 (5) · USPC 244/66 (5) · USPC 244/20 (5) · USPC 244/70 (5) · USPC 244/72 (5) · USPC 244/73R (5) · FR 6.2 (5) · USPC 244/64 (4) · USPC 244/26 (4) · USPC 244/51 (4)
IPCs:
None (247) · IPC B64B1/00 (13) · IPC B64C11/16 (11) · IPC B64C11/00 (9) · IPC B64C39/00 (7) · IPC B64C23/00 (7) · IPC B64C11/04 (7) · IPC B64C11/34 (5) · IPC B64C27/00 (4) · IPC B63H1/12 (4) · IPC B64B1/58 (4) · IPC B64C11/32 (3) · IPC B64D7/02 (3)
CPCs:
None (99) · CPC B64B1/00 (27) · CPC B64C23/005 (24) · CPC B64C11/006 (21) · CPC B64C39/005 (12) · CPC B64C33/02 (10) · CPC B64C11/48 (9) · CPC B64C11/16 (9) · CPC B64C11/04 (9) · CPC B64C11/065 (7) · CPC B64C3/14 (6) · CPC B64C27/82 (6) · CPC F05B2260/74 (6) · CPC B64C11/00 (6) · CPC B64D7/02 (5) · CPC B64C11/36 (5) · CPC B64C11/343 (5) · CPC B63H1/26 (5)
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Citations from after 1930:
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