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Patents > CPCs : CPC B64C2700/6212 or CPC B64C2700/6274 or IPC H03G5/20

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None (260) · Nord (5) · Seine (4) · Ohio (2) · Nièvre (2) · London (2) · Loire (2) · Indiana (2) · England (2) · California (2)
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None (227) · Patent FR-1908-396249 (5) · Patent DE-1909-220044 (2) · Patent US-1914-1169695 (2) · Patent US-1908-989022 (2) · Patent FR-1915-525800 (2) · Patent FR-1914-476300‎‎ (2) · Patent FR-1908-394254‎ (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent US-1915-1149680 (2) · Patent AT-1909-40038 (2)
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None (84) · None (18) · J. Germain (10) · E. Blétry (9) · Matray frères et Cie (9) · Armengaud jeune (6) · W. P. Thompson & Co. (5) · Hippolyte Josse (5) · J. Bonnet-Thirion (5) · G. de Mestral et F. Harle (4) · Paul Caquet (4) · Herbert Haddan & Co. (4) · Schwab (4) · P. Follin (3) · Marks & Clerk (3) · L. Chassevent (3) · 0 (3) · G. Petiau (3) · C. Bauman (3)
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