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Lord John Maclaurin Dreghorn

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Copyright And Patents For Inventions Evidence Given To The Royal Commission On Copyright In Favour Of Royalty Republishing. Extracts, Notes, & Tables Illustrating These Subjects, Copyright Of Design, Etc
Copyright And Patents For Inventions: Evidence Given To The Royal Commission On Copyright In Favour Of Royalty Republishing. Extracts, Notes, & Tables
Copyright And Patents For Inventions: Pleas And Plans For Cheaper Books And Greater Industrial Freedom, With Due Regard To International Relations, Th
Copyright And Patents For Inventions Pleas And Plans For Cheaper Books And Greater Industrial Freedom, With Due Regard To International Relations, The Claims Of Talent, The Demands Of Trade, And The Wants Of The People; Volume 2