Drilldown: Patents

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Patents > Year granted: 1900 - 1909 & Inventors : Salustio Valdés Cortés or None

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Tech fields:
None (458) · LTA (40) · balloon (17) · airship (11) · Navigation (11) · design (11) · Frame (10) · wings (9) · propulsion (8) · Airplane (8) · stability (8) · valve (7) · Flapping (7) · pressure (6) · Construction (6) · lift (5) · Aerodynamics (5) · propeller (5) · safety (5)
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None (488) · 344263D (2)
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CPCs:
None (481) · CPC B64B1/00 (12) · CPC B64B1/58 (5) · CPC B64B1/64 (4) · CPC B64B1/62 (3) · CPC B64C33/02 (3) · CPC B64C11/006 (2) · CPC B64B1/40 (2) · CPC B64C39/00 (2) · CPC B64C2700/6295 (2) · CPC B64C9/32 (2)
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