Drilldown: Patents

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Patents > Tech fields: None & Grant date: 1870 - 1879 & Assigned to: None

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CPCs:
CPC B64C11/006 (29) · CPC B64C11/346 (25) · CPC F03D11/00 (23) · CPC Y02E10/722 (22) · CPC B64C11/48 (21) · CPC B63H1/12 (14) · None (13) · CPC B64C27/33 (12) · CPC B64C11/343 (11) · CPC B63H1/04 (10) · CPC B64C11/36 (9) · CPC F03D1/025 (6) · CPC F05B2260/74 (6) · CPC B64C11/06 (5) · CPC Y02E10/72 (5) · CPC B64C11/003 (5) · CPC Y02E10/74 (4) · CPC B64C29/0033 (4) · CPC Y02E10/28 (4) · CPC F03D3/00 (4)
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