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Patents > Year filed: 1909 & Supplementary to patent: None & Number of text pages: 2-3

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None (407) · Seine (7) · Budapest (5) · Paris (5) · New York city (3) · Nord (3) · Seine-et-Oise (3) · Pittsburgh (2) · Allegheny county, Pennsylvania (2) · New York county (2) · Nièvre (2) · London (2) · Loire-Inférieure (2) · Loire (2) · PA (2) · New York (2) · Zagreb (2) · Berlin (2) · Yorkshire (2)
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None (117) · Armengaud jeune (26) · None (21) · J. Bonnet-Thirion (13) · Weismann et Marx (11) · Marks & Clerk (7) · E. Blétry (6) · Charles Dony (6) · Lavoix et Mosès (5) · L. Chassevent (5) · H. Elluin (5) · G. F. Redfern & Co. (5) · Chassevent (5) · Munn & Co. (4) · Boult, Wade & Tennant (4) · Émile Klotz (4) · E. Blum & Co. (4) · Y. Rabilloud et fils (4)
National tech categories:
FR 6.4 (152) · None (116) · HU V/h (22) · AT 77d (12) · FR 6.2 (8) · DE 77h.5 (6) · FR 5.3 (5) · USPC 244/45R (5) · USPC 244/72 (4) · USPC 244/65 (4) · USPC 244/64 (4) · DE 77h.6 (4)
IPCs:
None (154) · IPC B64C39/00 (42) · IPC B64B1/00 (22) · IPC B64C17/00 (19) · IPC B64C1/00 (19) · IPC B64C23/00 (18) · IPC B64C3/38 (17) · IPC B64C11/00 (12) · IPC B64C33/00 (11) · IPC B64C13/00 (11) · IPC B64B1/58 (11) · IPC B64C3/00 (9) · IPC B64C31/06 (8) · IPC B64C25/00 (8) · IPC B64C35/00 (7) · IPC B64C33/02 (7) · IPC B64C3/54 (6) · IPC B63H1/12 (6)
CPCs:
None (65) · CPC B64C2700/6295 (35) · CPC B64C39/00 (30) · CPC B64C17/00 (25) · CPC B64C23/005 (25) · CPC B64B1/00 (24) · CPC B64C3/385 (18) · CPC B64C13/00 (16) · CPC B64B1/58 (13) · CPC B64C2700/6274 (12) · CPC B64C33/02 (12) · CPC B64C33/00 (12) · CPC A63H27/08 (10) · CPC B64C11/006 (10) · CPC B64C3/00 (9) · CPC B64C1/00 (8) · CPC B64C2700/6256 (8) · CPC B64C2700/6218 (8) · CPC B64F2700/6226 (7) · CPC B64C39/08 (7)
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