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- Google Patents
AU117140B2 - Improvements in or relating to methods of polishing the interiors of hollow articles, such as hollow poppet valves, and the improved hollow stemmed poppet valves resulting therefrom
- Google Patents
Improvements in or relating to methods of polishing the interiors of hollow articles, such as hollow poppet valves, and the improved hollow stemmed poppet valves resulting therefrom
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
AU5818/42A
Inventor
Trescott Colwell Archie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
Thompson Products Inc
Filing date
Publication of AU117140B2publicationCriticalpatent/AU117140B2/en
Application filed by Thompson Products IncfiledCriticalThompson Products Inc
AU5818/42A1943-06-17Improvements in or relating to methods of polishing the interiors of hollow articles, such as hollow poppet valves, and the improved hollow stemmed poppet valves resulting therefrom
Expired - LifetimeAU117140B2
(en)
Improvements in or relating to methods of polishing the interiors of hollow articles, such as hollow poppet valves, and the improved hollow stemmed poppet valves resulting therefrom
Improvements in or relating to methods of preventing scaling during the forging of hollow metal articles, such as valves, andthe improved article or valve resulting therefrom