Drilldown: Patents

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Patents > National tech categories: None & Family year: 1800 - 1899 & Number of text pages: 2-3 & Number of claims: 3-4

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CPC B64C27/54 (7) · CPC Y02E10/72 (5) · CPC B64C11/006 (4) · CPC B64C11/48 (4) · None (3) · CPC F03D1/025 (2) · CPC F16B2200/40 (2) · CPC E05G1/024 (2) · CPC Y10T403/4677 (2) · CPC B64C11/04 (2) · CPC F16B2/02 (2)
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Showing below up to 35 results in range #1 to #35.

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