Drilldown: Patents

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Patents > Tech fields: marine & Supplementary to patent : Patent FR-1911-430455 or Patent GB-1909-12556 or None & Number of claims: None

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Office:
Inventors:
None (6) · Erik Emanuel Lindkvist (5) · Edward Smethurst (2)
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Applicant person:
None (78) · Edward Smethurst (2)
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Supplementary to patent: (Click arrow to add another value)
Related to aircraft:
National tech categories:
None (43) · IT 8 (12) · GB 4 propel & steer (6) · FR 6.3 (5) · GB 4 (4) · FR 6.4 (4) · FR 6.3? (3) · USPC 244/50 (3) · GB 4 with buoyant (3) · FR 6 (3) · USPC 244/65 (2) · USPC 244/22 (2) · USPC 244/155R (2) · USPC 244/153R (2) · USPC 244/119 (2) · USPC 89/1.51 (2) · DE 77 (2) · BE K (2) · DE 77h.9 (2)
First filing:
Citations from after 1930:
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Showing below up to 122 results in range #1 to #122.

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