by A. S. Narasimha Murthy , Henry R. Mohle
![[William Wheeler Hubbell, authorized to apply for patents.]](https://covers.openlibrary.org/b/id/10200621-M.jpg)
United States. Congress. Senate. Committee on Patents
Kokuritsu Kokkai Toshokan (Japan)
United States. National Transportation Safety Board.
United States. General Accounting Office
United States. Congress. House. Committee on Rivers and Harbors
