Drilldown: Patents

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Patents > Office : DEG or LU or US & Patent agent : Victor J. Evans or None & National tech categories : USPC 244/3.23 or USPC 244/45R

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Office: (Click arrow to add another value)
Inventors:
None (3) · Lincoln A. Merriam (2) · Ralph P. Fox (2) · Halvor Halvorson (2)
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Applicant person:
None (17) · Charles Spear (2) · Ralph P. Fox (2) · HYDE BENJAMIN TALBOT BABBITT (2)
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Applicant is inventor:
Tech fields:
projectile (33) · military (30) · None (21) · stability (8) · frame (6) · airfoil (5) · airplane (5) · propeller (3) · ballistics (3) · safety (2) · wheels (2) · aerodynamics (2) · parachute (2) · navigation (2) · Propulsion (2) · automatic stability (2)
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Citations from after 1930:
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Showing below up to 69 results in range #1 to #69.

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