FOR OVER SIXTY-SIX YEARS the firm of MUNN & CO. has conducted the largest patent practice in the country. We file thousands of applications for patents every year. Our system is so perfected that every case receives the best of attention and is prepared by experts who have had special training in handling every class of invention.

SEND SKETCH. If you will send us a sketch, no matter how crude, we will give you a fair and candid opinion as to whether it is probable a patent can be obtained. All matters of this kind are strictly confidential and the description and sketches will be dated and placed in our secret archives for future reference. This service and our Hand Book on Patents are free.

QUALITY. The quality of our work has given us an unrivaled reputation among Patent Attorneys and we are the recognized American attorneys for many leading Foreign Patent Solicitors. Our staff consists largely of Examiners from the United States Patent Office, who are therefore familiar with the latest procedure and the best practice. Our draftsmen are all expert mechanical constructors who are able to show the invention in operative form.

FREE NOTICE. All patents secured through our house receive a free notice in the SCIENTIFIC AMERICAN. No better or more economical method of introducing your invention to the attention of the public could be devised.

We are prepared to conduct Interference Proceedings, give Validity Opinions, draw up contracts and attend to all branches of legal work connected with Patents, Trade Marks, etc.