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Patents > Tech fields : balloon or rudder & CPCs : CPC B64B1/40 or CPC B64C2700/6274

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Ralph Hazlett Upson (3) · Henri-Alphonse-Désiré Hervé (3) · None (2) · Frederick Brackett (2) · Joseph Allison Steinmetz (2) · William Randolph Smith (2)
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Showing below up to 55 results in range #1 to #55.

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