| Title: | Petitions of McDonough and Gray to reopen the speaking telephone interferences : hearing, February 1 to February 9, 1888, before Hon. Benton J. Hall / |
| Author: | Gray, Elisha, 1835-1901 |
| Author: | McDonough, J. W. |
| Author: | Ingersoll, Robert Green, 1833-1899 |
| Author: | United States. Patent Office |
| Note: | Boston : A. Mudge & Son, 1888 |
| Link: | page images at HathiTrust |
| No stable link: | This is an uncurated book entry from our extended bookshelves, readable online now but without a stable link here. You should not bookmark this page, but you can request that we add this book to our curated collection, which has stable links. |
| Subject: | Patents |
| Subject: | Telephone |
| Other copies: | Look for editions of this book at your library, or elsewhere. |
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