orpedo launches with other small boats. as compared to an equal quantity of alum, is as one is to annihilation, which bids fair to develop into a particularly of war will have to be surrounded by lesser craft as a protec- effective means of defense against these terrible machines. sist heat eight… … into a propelling force. The air FOLDING-DOOR FIREPROOF SAFE. curity. is compressed to the extent of Where these safes have been 600 lbs. on the square inch. The subjected to severe tests, as in the case of the Chicago and a torpedo, when properly charged, will doa journey of a mile means of…
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