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Patents > Office : ?? or BE or FR or JP or SU & Patent agent : Armengaud jeune or None

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FR (1738) · None (301) · DE (161) · US (113) · BE (107) · GB (96) · AT (39) · IT (36) · CH (35) · RU (18) · DZ (9) · HU (7) · CA (7) · NL (7) · SE (6) · NO (5) · Algeria (5)
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National tech categories:
None (1374) · FR 6.4 (744) · FR 6.3 (227) · FR 5 (105) · BE K (102) · FR 6.2 (30) · FR 6 (22) · FR 5.8 (22) · FR 3 (10) · FR 20.1 (9) · FR 2 (9) · FR 10.1 (6) · FR 20 (6) · FR 12.3 (5) · FR 5.3 (5) · FR 12 (4) · FR 10.4 (4) · FR 15 (3) · RU 62b (3) · FR 3.2 (3)
IPCs:
None (1855) · IPC B64B1/00 (104) · IPC B64C17/00 (90) · IPC B64C1/00 (79) · IPC B64C39/00 (70) · IPC B64B1/58 (56) · IPC B64C11/00 (39) · IPC B64C3/00 (23) · IPC B64C23/00 (21) · IPC B64C27/04 (19) · IPC B64C3/54 (18) · IPC B64C35/00 (17) · IPC B64C25/00 (16) · IPC B64C3/38 (16) · IPC B64B1/40 (16) · IPC B64C33/02 (14) · IPC B64C13/00 (14) · IPC B64C11/04 (13) · IPC B63H1/12 (11) · IPC B64C33/00 (11)
First filing:
Citations from after 1930:
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