The purpose of this invention is to provide a reliable and convenient portable fire-fighting apparatus or sprayer consisting of a tank and a manually operated pump …
sprayer fire extinguisher Prior art date 1932-08-15 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 Inventor Myron H Smith
US2343400A – Knapsack fire extinguisher and sprayer
sprayer handle fire extinguisher pump Prior art date 1941-02-13 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a …
pump tank sprayer fire extinguisher Prior art date 1931-06-09 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 US543139A Inventor Myron H Smith
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Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher