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Number:
6828
Author:
R. Townsend
Issue:
ET Vol 34, Sep 1881
Tags:
Non-Conic Curves & Locus/Envelopes
Solved by:
A. McIntosh, MQ Vol 37
Solved by:
R. Townsend, MQ Vol 37
Solved by:
T. Woodcock, MQ Vol 37
Problem in the journal
Solution