Technical World Magazine, Volume 18American school of correspondence at Armour Institute of Technology, 1912 |
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Page 61
... hand scrubbing at that institution , has invented and patented an electric scrub- bing machine which supplies clean water to the floor . scrubs it , and takes up the dirty water as fast as the operator can walk . The motor is hidden ...
... hand scrubbing at that institution , has invented and patented an electric scrub- bing machine which supplies clean water to the floor . scrubs it , and takes up the dirty water as fast as the operator can walk . The motor is hidden ...
Page 66
hand sweep com- pletely back and forth across all of these connections in a very short period , and the hand must stop at the right contact for a longer while before the circuit is properly closed , in order to start the particular ...
hand sweep com- pletely back and forth across all of these connections in a very short period , and the hand must stop at the right contact for a longer while before the circuit is properly closed , in order to start the particular ...
Page
... Hand . " They are economical , too - cost no more and outlast the ordi- nary kind , and washing in gasoline leaves them soft and shapely . FREE BOOK OF GLOVES -Send coupon today to O. C. Hansen Mfg . Co. 105 Detroit St. Milwaukee , Wis ...
... Hand . " They are economical , too - cost no more and outlast the ordi- nary kind , and washing in gasoline leaves them soft and shapely . FREE BOOK OF GLOVES -Send coupon today to O. C. Hansen Mfg . Co. 105 Detroit St. Milwaukee , Wis ...
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acres aeroplane alfalfa American apparatus boat bridge building built canyon carry cent Chicago coal concrete construction cost crop Deschutes River device dollars dred eggs electric engine ether waves factory farm farmer fifty fish five four fruit give heat horse hour hundred feet inches isoprene Jack Jouett Kansas kaoliang land lead poisoning light machine Madero Manila means ment method Mexico miles Milk River million motor mountain Necaxa operation orchard pheasant picture plant pounds produce profit radium railroad river road rock Sayville Shaniko ship side station steel stream street tain TECHNICAL WORLD MAGAZINE thing thousand tion Tom Blackburn tons trackless trolley train trees twenty vessel Wauchula wheels white lead wire wireless York young