Mennons
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French patent agent Mennons was recorded as being at address Paris, rue Bass-du-Rempart, 52. This is likely a "Mennons aîné". See Mennons jeune for further developments.
Patents for which Mennons was the patent agent
- Patent FR-1877-118987 (Inventors: Comte Antoine Apraxine, English title: Improvements to aerial balloons)
- Patent FR-1878-124576 (Inventors: Comte Antoine Apraxine, English title: Improvements to aerial balloons)
- Patent US-1879-213603 (Inventors: Comte Antoine Apraxine, English title: Aerial balloon)