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"letters patent" » "lettres patentes"

1
by Frost, Robert
Published 1912
Stevens and Haynes
...Law and practice relating to letters patent for inventions...

2
by Frost, Robert
Published 1906
Stevens and Haynes
...Law and practice relating to letters patent for inventions...

3
by Frost, Robert
Published 1891
Stevens and Haynes

4
by Frost, Robert
Published 1898
Stevens and Haynes