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Patents > Year granted: 1912 & Applicant firm: None & National tech categories: None

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None (237) · Patent AU-1911-510 (2) · Patent GB-1911-12188 (2) · Patent ES-1911-50435 (2) · Patent BE-1911-05-15 Georges de Bothezat (2) · Patent BE-1910-12-31 Léon Dangy (2) · Patent FR-1910-423792 (2)
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Patent agent:
None (179) · Marks & Clerk (21) · Boult, Wade & Tennant (14) · Haseltine, Lake & Co. (12) · Wheatley & Mackenzie (6) · None (6) · Abel & Imray (4) · W. P. Thompson & Co. (4) · A. M. & William Clark (4) · J. S. Withers & Spooner (3) · Edward Evans & Co. (3) · Jensen & Son (3) · Gedge & Feeny (2) · Francis Heron Rogers (2) · Carpmael & Co. (2) · Boult, Wade, and Tennant (2) · Browne & Co. (2) · Lloyd Wise & Co. (2) · Munn & Co. (2) · Bauer & Imrie (2)
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IPCs:
None (199) · IPC B64C17/00 (19) · IPC B64C1/00 (17) · IPC B64C39/00 (16) · IPC B64C3/54 (7) · IPC B64C11/00 (7) · IPC B64C17/06 (6) · IPC B64C25/00 (4) · IPC B64B1/40 (3) · IPC B64C33/02 (3) · IPC B64C3/56 (3) · IPC B64B1/00 (3) · IPC B64C3/00 (3) · IPC B64C23/00 (3)
CPCs:
None (42) · CPC B64C39/00 (30) · CPC B64C2700/6295 (30) · CPC B64C17/00 (29) · CPC B64C11/006 (13) · CPC B64C2700/6218 (10) · CPC B64B1/00 (9) · CPC B64C23/005 (9) · CPC B64C17/06 (8) · CPC B64C33/02 (8) · CPC B64C13/00 (7) · CPC B64C2700/6214 (7) · CPC B64C2700/6256 (7) · CPC B64C2700/6281 (7) · CPC B64C3/385 (6) · CPC B64C2700/6212 (6) · CPC B64C35/00 (6) · CPC B64C2700/6216 (6) · CPC B64C3/54 (6) · CPC B64F2700/6226 (6)
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