Drilldown: Patents

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Patents > Year filed: 1900 - 1909 & Applicant firm: None & Filing date: 1900 - 1999 & Number of text pages: 1-2

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FR (445) · DE (236) · US (186) · GB (74) · HU (41) · AT (36) · CH (26) · IT (19) · BE (17) · None (15) · AH (15) · RU (15) · NL (11) · DK (9) · AU (9) · Poland (8) · Prussia (7) · DZ (6) · ES (5) · Galicia (5)
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IPCs:
None (458) · IPC B64B1/00 (98) · IPC B64C39/00 (83) · IPC B64B1/58 (38) · IPC B64C11/00 (37) · IPC B64C33/02 (31) · IPC B64C17/00 (29) · IPC B64C23/00 (29) · IPC B64C1/00 (25) · IPC B64C27/04 (23) · IPC B64B1/40 (18) · IPC B64C13/00 (17) · IPC B64C31/06 (17) · IPC B64C5/04 (15) · IPC B64C33/00 (15) · IPC B64C3/38 (14) · IPC B64C3/00 (14) · IPC B64B1/62 (11) · IPC B64C25/00 (11)
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