Drilldown: Patents

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Patents > Applicant firm: None & Publication date: 1900 - 1999 & Assigned to : 1908436280 or None

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FR (1946) · DE (630) · US (271) · GB (245) · None (197) · HU (158) · AT (153) · IT (86) · BE (80) · CH (79) · RU (63) · AU (39) · RO (30) · NL (27) · ES (26) · DZ (23) · AH (23) · CA (20) · DK (15) · Poland (13)
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National tech categories:
FR 6.4 (2201) · None (497) · HU V/h (320) · AT 77d (170) · FR 6.3 (116) · FR 6.2 (78) · DE 77h.5 (63) · DE 77h (45) · CH 129b (40) · FR 5.8 (36) · DE 77h.6 (33) · DK 77 (31) · AU 90.3 (27) · FR 10.1 (26) · FR 5.3 (24) · NL 62 (22) · DE 77h.9 (19) · DE 77h.15 (17)
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