Clement Lean
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British chartered patent agent Clement Lean, B.Sc., A.M.I.Mech.E., was recorded as being at address Thanet House, 231-2, Strand, London, W.C.[1]
Patents for which Clement Lean was the patent agent
- Patent GB-1909-13791 (Inventors: Hermann Ruthenberg, English title: Improvements in rotary fans or aerial propellers)
- Patent GB-1909-14409 (Inventors: Hermann Ruthenberg, English title: Improved Rotary Fan or Propeller with Helical Blade Surfaces, Supplementary to patent: Patent GB-1909-13791)
- Patent GB-1909-18710 (Inventors: Berthold Wassermann, English title: Dirigible airships)
- Patent GB-1909-23666 (Inventors: Hermann Ruthenberg, Supplementary to patent: Patent DE-1909-232158)
- Patent GB-1917-128995 (Inventors: William Davey Oddy, English title: Machines for Shaping Aircraft Propeller Blades)
- Patent GB-1920-170342 (Inventors: William Davey Oddy • William John Adderley, English title: Variable-pitch propellers)
