James G. Biddle Company · Philadelphia : James G. Biddle · leaf 9
give a course of instruction in its use at ourlaboratory, to those of our patrons who can come to see us. Thosewho are unable to come to Philadelphia we will assist in learning theuse of the apparatus by the correspondence method. If the reader is not interested in the more recent and… … JAMES G. BIDDLE, III4 CHESTNUT STREET, PHILADELPHIA. Roentgen Induction Coils of large capacity. The induction coil shown on page 6 is adapted for use on either thedirect or the alternating current with the Roentgen electrolytic inter-rupter. It is provided with series spark gaps, operating switch,…
X-rays · Induction coils · Radiography
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
