COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS FOB IVEI1013 Letters Patent of the United States were Granted in the Week Ending August 8 1876 AND EACH BEARING THAT DATE. SCHEDULE OF PATENT FEES. $20 $30 $10 $15 $30 THE VALIDITY OF PATENTS. Back Page each insertion - $ a line. 51 free Chicago. Publish Prof. S. E. Warren's Series of Prepara tory College and Polytechnic School Text Books. Free-hand Geometrical Drawing and Lettering. Elementary Plane Problems. Drafting Instrum'ts Materials and Operations. Elementary Perspective of Forms and Shadows. EDSON'S RECORDING GAUGE FOR STEAM OR WATER


COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS FOB IVEI1013 Letters Patent of the United States were Granted in the Week Ending August 8 1876 AND EACH BEARING THAT DATE. SCHEDULE OF PATENT FEES. $20 $30 $10 $15 $30 THE VALIDITY OF PATENTS. Back Page each insertion - $ a line. 51 free Chicago. Publish Prof. S. E. Warren's Series of Prepara tory College and Polytechnic School Text Books. Free-hand Geometrical Drawing and Lettering. Elementary Plane Problems. Drafting Instrum'ts Materials and Operations. Elementary Perspective of Forms and Shadows. EDSON'S RECORDING GAUGE FOR STEAM OR WATER., scientific american, 76-09-09


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