Drilldown: Patents

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Patents > Office: FR & Patent agent : J. S. Withers & Spooner or None

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None (1907) · Patent FR-1841-9265 (6) · Patent FR-1909-408644 (4) · Patent FR-1836-5429 (3) · Patent FR-1912-446818 (3) · Patent FR-1878-124576 (3) · Patent FR-1880-139386 (3) · Patent DE-1911-11-16 Otto Albin Budig (3)
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National tech categories:
None (1230) · FR 6.4 (467) · FR 6.3 (201) · FR 5 (104) · FR 6.2 (25) · FR 6 (22) · FR 3 (10) · FR 5.8 (9) · FR 2 (8) · FR 10.1 (7) · FR 20.1 (7) · FR 20 (6) · FR 10.4 (4) · FR 12 (4) · FR 3.2 (3) · FR 15 (3) · FR 12.3 (3)
IPCs:
None (1585) · IPC B64B1/00 (89) · IPC B64C17/00 (63) · IPC B64C1/00 (56) · IPC B64B1/58 (48) · IPC B64C39/00 (46) · IPC B64C11/00 (23) · IPC B64C23/00 (18) · IPC B64C27/04 (14) · IPC B64C3/00 (11) · IPC B64B1/40 (11) · IPC B64C33/02 (10) · IPC B64C35/00 (9) · IPC B63H1/12 (9) · IPC B64C3/38 (8) · IPC B64C33/00 (8) · IPC B64B1/62 (8) · IPC B64C11/16 (6) · IPC B64C17/06 (6)
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