Before Disclosing invention write for booklet and blank form aEvidence of Conceptiona to be signed, witnessed and returned with rough sketch or model of your idea, upon receipt of which I will promptly give opinion of patentable nature and instructions. No charge for preliminary advice. ... Mailing Lists Ask For Our Silent Salesman Showing 3, 000 classified mailing lists. ... Martinek, Corona, N. Y. 300, 000 Minnesota Farmers, Villages. ity. ... F. Smith, Huntington, Long Island. A STOREanbsp;...