Key to the classifications of the patent specifications of France, Germany, Austria, Netherlands, Norway, Denmark, Sweden, and Switzerland, in the library of the Patent office.
|Corporate Author:||Great Britain.|
London, H. M. Stationery off., Darling & son, ltd. [printers] 1915.
Classification / Books /
Patents > Patents / Europe.
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|Item Link||Original Source|
|Full view||University of Michigan|