Contractors' and Dealers' Association of California · San Francisco : L. A. Larson · leaf 358
obtained OB NO FEE. Trade-Marka, ftCaveats. Copvrijrhts and Lfthela registered.TWENTY YEARS PRACTICE. Highest references.Send model _sketch or pboto. for free reporton patentahilitv. All bnainefis confidential.HAHD-BOOK FREE. Explainsevervth.ng. TellsHow to Obtain and Sell Patents. What… … Trade Marks Designs Copyrights Ac. Anyone sending a sketch and description mayquickly ascertain our opinion free whether anmycntlon Is probably patentable. Communiea-tlons strictly confidential. HANDBOOK on Patentssent free. Oldest agency for securing patents. Patents taken through Munn & Co.…
Architecture · Building · Construction industry · Engineering
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