The Technical World Magazine, Volume 20Technical World Company, 1912 |
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Page 4
... inventions . WHAT TO INVENT Contains a valuable list of Inventions Wanted and sug- gestions concerning profitable fields of invention . Also in- formation regarding prizes offered for inventions , among which is a PRIZE OF $ 100,000 ...
... inventions . WHAT TO INVENT Contains a valuable list of Inventions Wanted and sug- gestions concerning profitable fields of invention . Also in- formation regarding prizes offered for inventions , among which is a PRIZE OF $ 100,000 ...
Page 324
... inventions . WHAT TO INVENT Contains a valuable list of Inventions Wanted and sug- gestions concerning profitable fields of invention . Also in- formation regarding prizes offered for inventions , among which is a PRIZE OF $ 100,000 ...
... inventions . WHAT TO INVENT Contains a valuable list of Inventions Wanted and sug- gestions concerning profitable fields of invention . Also in- formation regarding prizes offered for inventions , among which is a PRIZE OF $ 100,000 ...
Page 373
... invention has a great field of usefulness in sur- gery and certain industries . Surgeons depend upon the color of the tissues to tell whether they are diseased or not . A great deal of surgery is done at night . In artificial light the ...
... invention has a great field of usefulness in sur- gery and certain industries . Surgeons depend upon the color of the tissues to tell whether they are diseased or not . A great deal of surgery is done at night . In artificial light the ...
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