Contractors' and Dealers' Association of California · San Francisco : L. A. Larson · leaf 270
p; Elec Co tojliom it may concern.. .July 23, 1912 promptly nhtilned OR HO FEE. Trade-Mario,Caveats. CnpvriiMs and Labels registered.TWENTY TEARS PRACTICE Highest reference!.Send model sketch or photo, for tree reporton patenfathilitv. All business confidential.HANDBOOK FREE Explainsev.rvthing.… … .ade MarksDesigns COPYRIGHTS Ac. Anyone sending a sketch and description maynulckly ascertnm our opinion free whether aninvention Is probably patentable. Comrounlca-lionsstrictlyconUdeiitlal. HANDBOOK on Patent*sent tree. Oldest agency for securing patent!. Patents taken through Muim * Co.…
Architecture · Building · Construction industry · Engineering
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