Drilldown: Patents

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Patents > Tech fields : construction or hybrid or lift & Supplementary to patent : Patent FR-1909-420322 or None & Number of text pages: 3-4

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None (84) · Armengaud jeune (33) · None (12) · Weismann et Marx (6) · G. de Mestral et F. Harlé (6) · Brewer & Son (5) · John P. Tarbox (5) · Dupont et Elluin (5) · Haseltine, Lake & Co. (4) · H. Bœttcher fils (4) · Munn & Co. (4) · Victor J. Evans (4) · Lavoix et Mosès (4)
National tech categories:
FR 6.4 (124) · None (72) · HU V/h (17) · FR 6.3 (6) · CH 129b (5) · USPC 244/22 (5) · AT 77d (4) · USPC 244/66 (4) · USPC 244/6 (4) · FR 6.2 (4) · USPC 244/35R (3) · USPC 244/218 (3) · USPC 244/90R (3)
IPCs:
None (106) · IPC B64B1/00 (18) · IPC B64C39/00 (18) · IPC B64C3/00 (16) · IPC B64C23/00 (14) · IPC B64C1/00 (13) · IPC B64C33/02 (9) · IPC B64C17/00 (8) · IPC B64B1/58 (7) · IPC B64C3/56 (6) · IPC B64C3/18 (6) · IPC B64C33/00 (6) · IPC B64C27/04 (6) · IPC B64C3/54 (5) · IPC B64C35/00 (5) · IPC B64C3/38 (4) · IPC B64C3/48 (4) · IPC B64C1/06 (4)
CPCs:
None (40) · CPC B64B1/00 (24) · CPC B64C23/005 (22) · CPC B64C3/00 (17) · CPC B64C33/02 (13) · CPC B64C17/00 (12) · CPC B64C39/00 (11) · CPC B64C2700/6295 (10) · CPC B64C33/00 (9) · CPC B64C2700/6233 (9) · CPC B64C39/005 (9) · CPC B64B1/58 (8) · CPC B64C1/00 (8) · CPC B64C2700/6274 (8) · CPC B64C2001/0063 (8) · CPC B64C3/56 (7) · CPC B64C35/00 (6) · CPC B64C39/008 (6)
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