THE WORLD'S ADVANCE for JULY 



139 



TRADEMARKS 



COPYRIGHTS' 



3O YEARS 

 EXPERIENCE 



IN U.S. 



I PATENT OFFICE! 



Do not waste your money for patents procured by in- 

 competent solicitors. Such patents are worthless and 

 manufacturers will not huy them, nor do they give 

 absolute protection. Consult an expert who is 'known 

 throughout the Patent world. Costs you no more to be 

 safe. Head of the United States Patent office and 

 Commissioner of Patents under Presidents Roosevelt, 

 Taft and Wilson and Assistant Commissioner under 

 President McKinley. Thirty years' experience in the 

 U. S. Patent office qualifies me to give you expert 

 service and to secure you fullest protection. Inquiries 

 solicited. 



Sole Offices, 151 Barrister BIdg., Washington, D. C. 



ffauce flfooffe 



BUILD 

 FORTUNES 

 FOR YOU 



PATENTS 



Our free booklets tell how, what to invent, How 

 To CHOOSE AN ATTORNEY, and save you money. 



Prosperous clients in all states, Best Bank 

 and other references. WRITE TODAY 



D SWIFT Rr PO 315 SEVENTH ST., 



. OYYir 1 (K \AS*f WASHINGTON, D. C. 



Protective Patents 



procured promptly. Strictly professional ser- 

 vice. No fee refund, no certificate guarantee 

 no so-called prize or free search schemes used in 

 our business. x Inventor's 112 page Blue Book on 

 Patents sent on request. ROBB & ROBB, 240- 

 244 Southern Building, Washington, D. C. 



1 



L. N. GILLIS 



PAT E N T S 



Electrical and Mechanical 

 Expert 



Send me your ideas 

 VICTOR BLDG., WASHINGTON, D. C. 



Sell HI J Patent 



Let us not only procure your patent promptly, cheaply and 

 efficiently, but also its profitable exploitation. Patent Secured 

 or our Fee Refunded. 



THE AMERICAN-EUROPEAN PATENT OFFICES 



309 Broadway, New York. 



Booklet free. English, French and German spoken. 



B 



m ^t u,i , - P tctYouf.I^ 2 Jgl K J 

 end data (model) $ot Search iRtL OUR 



858 FStiWdStuDr. 



PATENTS 



BOOKS and ADVICE, LIST 

 OF INVENTIONS WANTED 



THAT PROTECT AND PAY 



FREE 



Send sketch or model for search. Highest References. 



Best Results. Promptness Assured. 



WATSON E. COLEMAN, Patent Lawyer 



624 F Street, N. W. - Washington, D. C. 



MONEY IN PATENTS 



Manufacturers are always 

 looking for inventions. 

 All patentable ideas should 

 be protected by a patent. 



(By a Registered U. S. Patent Attorney.) 



The great majority of money making inven- 

 tions, are thought of by persons I will term 

 amateur inventors, and nearly always are some 

 very small or simple thing, for the reason that 

 a large invention takes too much time and money 

 for the average person to produce. 



I have inquiries from all over the country, 

 in which manufacturers and business houses are 

 looking for patents in every line of industry. 

 Owing to these inquiries I am able to 



PUT INVENTORS IN DIRECT 



TOUCH WITH MANUFACTURERS 



WHO WANT PATENTS 



and thereby find a ready sale for their invention, 

 which, for results, is far more practicable than 

 any other mode of assistance to inventors. 



A book "How to get your patent and make 

 your profits thereon," which contains gen- 

 eral patent information, is free and I 

 would be very glad to have you write me 

 for a copy of it. 



MANSELL F. MILLS 



Registered United States Patent Attorney 

 218 Commercial National Bank BIdg., Washington, D. C.' 



PATENTS 



I 



F YOU HAVE AN INVENTION 

 which you wish to patent you can 

 write fully and freely to Munn & Co. 

 for advice in regard to the best way 

 of obtaining protection. Please send 

 sketches or a model of your inven- 

 tion and a description of the device, 

 explaining its operation. 

 All communications are strictly confiden- 

 tial. Our vast practice, extending over a 

 period of seventy years, enables us in 

 many cases to advise in regard to patent- 

 ability without any expense to the client. 

 Our Hand-Book on Patents is sent free on 

 request. This explains our methods, 

 terms, etc., in regard to Patents, Trade 

 Marks, Foreign Patents, etc. 



All patents secured through us are described without cost 

 to the patentee in the SCIENTIFIC AMERICAN. 



MUNN & CO. 



SOLICITORS OF PATENTS 



668 WOOLWORTH BLDG., NEW YORK 

 and 625 F STREET, WASHINGTON, D.C. 



For our Mutual Advantage mention The World's Advance when writing to Advertisers. 



