Drilldown: Patents

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Patents > Year granted: 1910 - 1919 & Grant date: 1912

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Year granted:
Inventor country:
FR (425) · US (404) · DE (132) · GB (83) · IT (27) · AT (27) · RU (18) · CH (17) · BE (16) · HU (14) · None (12) · CA (9) · RO (6) · AU (6) · Prussia (4) · ES (4) · VN (4) · DK (3) · NZ (3) · MX (3)
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National tech categories:
FR 6.4 (380) · None (288) · HU V/h (30) · AT 77d (19) · USPC 244/80 (18) · USPC 244/90R (18) · FR 6.2 (17) · USPC 244/45R (16) · USPC 244/22 (14) · RU Group V (14) · USPC 244/35R (13) · USPC 244/93 (11) · USPC 244/48 (10) · USPC 244/76R (10) · USPC 244/87 (10) · BE K (9) · FR 5.8 (8) · USPC 244/6 (8) · USPC 244/231 (8) · USPC 244/46 (8)
IPCs:
None (599) · IPC B64C17/00 (81) · IPC B64C39/00 (75) · IPC B64C1/00 (67) · IPC B64C11/00 (28) · IPC B64C25/00 (23) · IPC B64C3/00 (21) · IPC B64B1/00 (21) · IPC B64D17/00 (20) · IPC B64C3/38 (19) · IPC B64C35/00 (16) · IPC B64C3/56 (15) · IPC B64C23/00 (14) · IPC B64C3/54 (12) · IPC B64C33/02 (11) · IPC B64C17/06 (11) · IPC B64B1/58 (11) · IPC B64C13/00 (10) · IPC B64C11/16 (8)
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Citations from after 1930:
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