Dircks, Henry,  1806-1873. <br/><br/>
Patent monopoly as affecting the encouragement, improvement, & progress of sciences, arts, and manufactures :  a letter with accompanying statements and statistics, addressed to the Right Hon. Lord Stanley / 
by Henry Dircks. 
 - London :  E. & F. N. Spon,  1869. 
 - 32p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patent laws and legislation--Great Britain.