Drilldown: Patents

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Patents > Filing date: 1909 & Granted: Yes & Patent agent: None

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None (392) · Patent GB-1909-2111 (6) · Patent GB-1908-4519 (6) · Patent US-1909-970771 (5) · Patent DE-1908-221549 (3) · Patent DE-1909-221412 (3) · Patent GB-1908-13809 (3) · Patent US-1908-1077750 (3) · Patent US-1909-1010443 (3) · Patent FR-1908-404631 (2) · Patent DE-1908-220975 (2) · Patent US-1908-1081147 (2) · Patent FR-1909-406375 (2) · Patent FR-1908-407411 (2) · Patent US-1908-927605 (2) · Patent DE-1907-215602 (2) · Patent FR-1909-395148 (2) · Patent AU-1909-15563 (2) · Patent DE-1909-232158 (2) · Patent DE-1908-227242 (2)
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National tech categories:
None (187) · FR 6.4 (57) · HU V/h (38) · AT 77d (28) · DE 77h.5 (15) · IT 8 (13) · RU Group V (11) · DE 77h.4 (7) · DE 77h.6 (6) · FR 6.2 (5) · DK 77 (5) · DE 77h.15 (5) · DE 77h.11 (5) · DE 77h.10 (4) · USPC 244/66 (4) · DE 77h.2 (4) · USPC 244/93 (4) · USPC 244/80 (3) · USPC 244/13 (3) · USPC 244/51 (3)
IPCs:
None (353) · IPC B64C39/00 (21) · IPC B64B1/58 (17) · IPC B64B1/00 (15) · IPC B64C33/02 (9) · IPC B64C17/00 (8) · IPC B64C1/00 (6) · IPC B64C11/00 (6) · IPC B64B1/62 (5) · IPC B64B1/40 (3) · IPC B64C33/00 (3) · IPC B64C23/00 (3) · IPC B64C13/00 (3) · IPC B64C3/38 (3)
CPCs:
None (167) · CPC B64C2700/6295 (35) · CPC B64C39/00 (26) · CPC B64B1/58 (23) · CPC B64B1/00 (20) · CPC B64C11/006 (17) · CPC B64C17/00 (16) · CPC B64C3/385 (15) · CPC B64C33/02 (14) · CPC B64C39/005 (9) · CPC B64C23/005 (9) · CPC B64C13/00 (8) · CPC B64C11/36 (7) · CPC B64B1/40 (7) · CPC B64C11/00 (7) · CPC B64C2700/6281 (6) · CPC B64C39/008 (6) · CPC B64B1/62 (6) · CPC B64C33/00 (6) · CPC B64C9/00 (5)
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