Patents for inventions /
by J. Ewart Walker ... and R. Bruce Foster.
Main Creator: | |
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Contributors: | |
Format: | BOOK |
Language: | English |
Published / Created: |
London ; New York :
Sir I. Pitman & Sons, Ltd.,
1922.
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Subjects: | |
Notes: | Physical description: xiii, 377 p. ; 22 cm. |
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