AU121444B2 - Improvements in or relating to methods of making hollow articles particularly valves, andthe improved products resulting therefrom
- Google Patents
Improvements in or relating to methods of making hollow articles particularly valves, andthe improved products 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.)
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Northrop Grumman Space and Mission Systems Corp
Original Assignee
Thompson Products Inc
Filing date
Publication date
Application filed by Thompson Products IncfiledCriticalThompson Products Inc
Application grantedgrantedCritical
Publication of AU893643ApublicationCriticalpatent/AU893643A/en
Publication of AU121444B2publicationCriticalpatent/AU121444B2/en
AU8936/43A1943-04-10Improvements in or relating to methods of making hollow articles particularly valves, andthe improved products resulting therefrom
ExpiredAU121444B2
(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