AU115731B2 - Improvements in respirators - Google Patents

Improvements in respirators

Info

Publication number
AU115731B2
AU115731B2 AU4400/42A AU440042A AU115731B2 AU 115731 B2 AU115731 B2 AU 115731B2 AU 4400/42 A AU4400/42 A AU 4400/42A AU 440042 A AU440042 A AU 440042A AU 115731 B2 AU115731 B2 AU 115731B2
Authority
AU
Australia
Prior art keywords
respirators
Prior art date
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
AU4400/42A
Inventor
Howard Lehmberg William
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.)
American Optical Corp
Original Assignee
American Optical Corp
Filing date
Publication of AU115731B2 publication Critical patent/AU115731B2/en
Application filed by American Optical Corp filed Critical American Optical Corp
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

AU4400/42A 1942-02-07 Improvements in respirators Expired - Lifetime AU115731B2 (en)

Publications (1)

Publication Number Publication Date
AU115731B2 true AU115731B2 (en)

Family

ID=

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