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Page 338
K To Make Student Lamp Can you give me a description of the construction of the so - called student lamp , and what are its advantages ? -N . O. B. In spite of our advance in lighting during the last decade , neither the illuminating by ...
K To Make Student Lamp Can you give me a description of the construction of the so - called student lamp , and what are its advantages ? -N . O. B. In spite of our advance in lighting during the last decade , neither the illuminating by ...
Page 725
FORTUNES IN PATENTS Tells How to Invent for Profit and gives history of successful inventions . WHAT TO INVENT Contains a valuable list of Inventions Wanted and suggestions concerning profitable fields of invention .
FORTUNES IN PATENTS Tells How to Invent for Profit and gives history of successful inventions . WHAT TO INVENT Contains a valuable list of Inventions Wanted and suggestions concerning profitable fields of invention .
Page
I give INSTRUCTIONS UNTIL COMPETENT and PLACED in POSITION at above salary DON'T waste TIME and MONEY trying to learn from books or printed " STUFF . " You can only learn on PRACTICAL WORK which I furnish you .
I give INSTRUCTIONS UNTIL COMPETENT and PLACED in POSITION at above salary DON'T waste TIME and MONEY trying to learn from books or printed " STUFF . " You can only learn on PRACTICAL WORK which I furnish you .
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Contents
MAGAZINE | 586 |
Cover Design LEJAREN HILLER | 591 |
Men of SciencePORTRAITS | 605 |
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