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Number:
2489
Author:
S. Watson
Issue:
ET Vol 20, Sep 1867
Tags:
Non-Conic Curves & Locus/Envelopes
Solved by:
W. Chadwick, MQ Vol 9
Solved by:
T. Dobson, MQ Vol 9
Solved by:
W.H. Laverty, MQ Vol 9
Solved by:
R. Tucker, MQ Vol 9