Drilldown: Patents

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Patents > Applicant is inventor: Yes & Patent agent : E. Blétry or Haseltine, Lake & Co. & National tech categories : DE 77 or USPC 244/45R or None & Citations from after 1930: None & Number of figures: 8-60

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frame (8) · stability (7) · LTA (6) · Design (6) · None (4) · dirigibles (4) · Rigid (3) · Airship (3) · marine (3) · airplane (3) · gyroscope (3) · construction (3) · propeller (3)
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Showing below up to 22 results in range #1 to #22.

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