Drilldown: Patents

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Patents > Tech fields : paper or propulsion & National tech categories: None

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Application number:
None (289)
Granted:
Supplementary to patent:
None (300) · Patent GB-1909-12556 (3) · Patent CH-1907-41855 (3) · Patent AT-1912-75092 (3) · Patent FR-1910-423792 (2) · Patent GB-1908-21754 (2) · Patent DE-1907-215602 (2) · Patent DE-1907-196255 (2) · Patent DE-1893-73799 (2) · Patent FR-1916-502839 (2) · Patent CA-1918-196108 (2) · Patent GB-1913-4191 (2) · Patent FR-1885-168266 (2) · Patent IT-1907-03-09 (2) · Patent FR-1910-424987 (2) · Patent FR-1907-382895 (2) · Patent US-1916-1208684 (2)
Patent agent:
None (195) · Boult, Wade & Tennant (14) · Marks & Clerk (12) · Wheatley & Mackenzie (10) · Haseltine, Lake & Co. (9) · G. F. Redfern & Co. (6) · None (5) · Abel & Imray (5) · W. P. Thompson & Co. (5) · Herbert Haddan & Co. (4) · 0 (4) · Munn & Co. (4) · J. Owden O'Brien (4)
National tech categories: (Click arrow to add another value)
IPCs:
None (299) · IPC B64C39/00 (17) · IPC B64C11/00 (16) · IPC B64C23/00 (8) · IPC B64C11/16 (6) · IPC B64C27/04 (6) · IPC B64B1/00 (4) · IPC B64C11/36 (4) · IPC B64C3/38 (4) · IPC B64C33/00 (4) · IPC B64C33/02 (3) · IPC B63H1/12 (3) · IPC B64D35/04 (3) · IPC B64C11/04 (3) · IPC B64B1/58 (3)
CPCs:
None (236) · CPC B64C11/006 (25) · CPC B64C23/005 (10) · CPC B64B1/00 (10) · CPC B64C39/005 (9) · CPC B64C11/16 (8) · CPC B64C39/00 (7) · CPC B64C2700/6274 (6) · CPC B64C2700/6295 (6) · CPC B64C2700/6281 (6) · CPC B64C33/02 (5) · CPC B64C33/00 (5) · CPC B64C11/36 (5) · CPC B63H11/12 (5) · CPC B64C27/54 (5) · CPC B64C3/385 (5) · CPC B64C11/04 (4) · CPC B64C27/04 (4)
First filing:
Cites these patents:
None (411)
Citations from after 1930:
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