1916 – Machine for Submarine Salvage Operations – Alexander J. Bergeron (American)

1916 – Machine for Submarine Salvage Operations by Alexander J. Bergeron MACHINE FOR SUBMARINE SALVAGE OPERATIONS Publication number    US1304012 A Publication type    Grant Publication date    May 20, 1919 Filing date    May 11, 1916 Inventors    Alexander J. Bergeron Description The object of my invention is to provide a machine for sub-marine salvage operations, adapted at all …