Drilldown: Patents

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Patents > Office : AT or DE or US

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US (3421) · None (1170) · DE (923) · FR (263) · GB (203) · AT (149) · CA (65) · IT (44) · HU (43) · CH (35) · AH (30) · RU (23) · AU (21) · Prussia (18) · Poland (17) · NL (16) · MX (14) · SE (13) · BE (13) · NO (11)
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Cites these patents:
None (6263) · 0 (14) · 1 (12) · 1910 (7) · CPC B64B1/00 (5) · 1911 (4) · USPC 244/87 (3) · 1887 (3) · USPC 244/48 (3) · 1909 (3) · 1877 (2) · Patent US-1903-821393 (2) · 1907 (2)
Citations from after 1930:

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