Containing the United States Patent Laws, with Notes of Numerous Decisions of the United States Courts, Also Rules and Directions for Proceedings in the Patent Office of the United States, with Forms and Instructions for Patentees After They Have Secured Their Letters Patent; Together with a List of the Counties of Each State, for Recording Memoranda of Sales, &c.; Interest Table; an Abstract of the Census of 1850; a List of the Number of Patents for Inventions and Designs, that Have Been Granted by the United States Patent Office; a Dictionary of Technical Terms in Mechanics, and Other Interesting and Useful Notes and Rules