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Number:
548
Author:
W.H. Levy
Issue:
ET Vol 5, Sep 1852
Tags:
Non-Conic Curves & Locus/Envelopes
Solved by:
G.H.S., ET Vol 6, Nov 52
Solved by:
W.H. Levy, ET Vol 6, Nov 52
Solved by:
Pulciput, ET Vol 6, Nov 52
Solved by:
Mons. L. Skrodzki, ET Vol 6, Nov 52