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- Google Patents
AU489715B2 - Improvements in or relating to breathing apparatus
- Google Patents
Improvements in or relating to breathing apparatus
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.)
JOHN RONALD COLSTON and NORMAN EUGENE SMITH FRANK EUGENE MARTIN
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US413413Aexternal-prioritypatent/US3913576A/en
Application filed by Westinghouse Electric CorpfiledCriticalWestinghouse Electric Corp
Application grantedgrantedCritical
Publication of AU489715B2publicationCriticalpatent/AU489715B2/en
Publication of AU7433774ApublicationCriticalpatent/AU7433774A/en