Scientific American 484 JuNE 9, 1906. … GOODELL-PRATT COMPANY Greenfield, Mass- Hoists, etc. Thousands in use in Railway signal operating mechanism. all parts of the world. THUMM 05 iio ste oa sie os re ajebsedes eae s ee “821,899 Railway signaling apparatus, Skelton & AUGUST MIETZ Chudleigh .......... cece cece cece scene 821,754…
Internet Archive · Public domain (published before 1931). Free to use for anything.
