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Name and Date Patents

Name and Date Patents PDF Author:
Publisher:
ISBN:
Category : Patents
Languages : en
Pages : 412

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Book Description
Photocopy of a typescript index of early unnumbered patents. The entries in the document are arranged chronologically with the "X" patent number provided. Patents that were recovered after the Patent Office fire of 1836 are hand-recorded with class and subclass numbers in the right-hand column.