patented by Mr. Maurice Schmirk, of ciated by thousands of business men, manufacturers Fayette, Mo. Upon each upright of the legs a mouthpiece at the central board will fall, indicating standard or extension is held vertically adjustable by exactly which line is being operated. On the other means… … acoustic telephones. The requirements for constructing the line are very simple, and it is not at all necessary to avoid angles, all that is requisite being to keep the line free from pins upon the standards traveling in the slots of the pressure against any solid substance. To avoid this, legs.…
Internet Archive · Public domain (published before 1931). Free to use for anything.
