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Patents > Inventor country : CA or GB or NL or RU & IPCs: None

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Inventor country: (Click arrow to add another value)
Applicant is inventor:
Application number:
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Supplementary to patent:
None (863) · Patent GB-1908-4519 (10) · Patent GB-1909-12556 (9) · Patent GB-1913-16499 (7) · Patent GB-1911-12232 (6) · Patent GB-1909-26034 (6) · Patent GB-1909-2111 (6) · Patent BE-1911-05-15 Georges de Bothezat (5) · Patent GB-1903-27212 (5) · 1 (4) · Patent GB-1912-18166 (4) ·   (4) · Patent CA-1910-131159 (4) · Patent GB-1909-8531 (4)
Patent agent:
None (756) · Marks & Clerk (12) · None (11) · Haseltine, Lake & Co. (8) · Brierley & Howard (7) · Phillipss (6) · Munn & Co. (6) · 0 (5) · Phillips & Leigh (4) · J. Owden O'Brien (4) · J. Gevers (4) · Harris & Mills (4) · Fred Walsh (4) · Edwin Phillips (4) · Henry Hughes (4) · Abel & Imray (4)
National tech categories:
None (748) · GB 4 propel & steer (21) · BE K (18) · FR 6.4 (18) · RU Group V (12) · HU V/h (11) · GB 4 without buoyant (11) · AU 90.5 (11) · FR 6.3 (11) · AT 77d (9) · IT 8 (9) · DK 77 (9) · NL 62 (8) · AU 90.3 (8) · DE 77 (7) · USPC 244/90R (7) · CH 129b (6)
IPCs: (Click arrow to add another value)
CPCs:
None (473) · CPC B64B1/00 (41) · CPC B64C2700/6295 (29) · CPC B64C13/00 (29) · CPC B64C23/005 (27) · CPC B64C3/00 (26) · CPC B64C39/00 (24) · CPC B64C35/00 (23) · CPC B64C17/00 (20) · CPC B64C3/385 (20) · CPC B64C11/006 (17) · CPC B64C3/18 (16) · CPC B64C2700/6274 (16) · CPC B64C2700/6256 (16) · CPC B64C33/02 (15) · CPC B64C3/185 (13) · CPC B64C3/56 (13)
First filing:
Citations from after 1930:

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