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Patents > Year filed: 1911 & Applicant is inventor: Yes & Assigned to: None

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Inventor country:
FR (422) · US (385) · DE (154) · GB (93) · IT (31) · AT (28) · None (24) · CA (15) · CH (14) · RU (14) · BE (14) · HU (14) · AU (13) · RO (11) · Prussia (5) · NO (5) · Poland (4) · ES (4) · IN (3)
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National tech categories:
None (406) · FR 6.4 (375) · HU V/h (31) · AT 77d (18) · FR 6.2 (14) · BE K (13) · USPC 244/80 (12) · USPC 244/90R (12) · FR 5.8 (9) · USPC 244/76R (8) · DE 77h.5 (8) · USPC 244/22 (8) · USPC 244/233 (8) · USPC 244/46 (8) · USPC 244/87 (8) · AU 90.3 (7) · USPC 244/45R (7)
IPCs:
None (616) · IPC B64C17/00 (107) · IPC B64C1/00 (87) · IPC B64C39/00 (73) · IPC B64C11/00 (28) · IPC B64C25/00 (26) · IPC B64C3/00 (19) · IPC B64C23/00 (19) · IPC B64C3/38 (18) · IPC B64C33/02 (17) · IPC B64C17/06 (15) · IPC B64B1/00 (12) · IPC B64D17/00 (11) · IPC B64C13/00 (11) · IPC B64C3/54 (11) · IPC B64B1/58 (10) · IPC B64C3/56 (9) · IPC B64C11/16 (7) · IPC CPC B64C13/00 (7)
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