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Fire-extinguishing and fire preventing and minimizing
Patents for inventions; abridgments intended to serve as guides to specifications. (Abridgments of Specifications class 47 (ii) period A.D. 1926-30 (244-801-340,200))
Fire-extinguishing and fire preventing and minimizing
Patents for inventions; abridgments intended to serve as guides to specifications. (Abridgments of Specifications class 47 (ii) period A.D. 1926-30 (244-801-340,200))
Fire-extinguishing and fire preventing and minimizing
Fire-Extinguishing and Fire Preventing and Minimizing
1932
113 pages
Aufsatz (Zeitschrift)
Englisch
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