1927 – Flexible Diving Armour – Karl Hipssich (German)

  1927 – Flexible Diving Armour by Karl Hipssich. Publication number    US1722375 A Publication type    Grant Publication date    Jul 30, 1929 Filing date    Mar 16, 1927 Priority date    Mar 16, 1927 Inventors    Karl Hipssich Original Assignee    Karl Hipssich 1. A diving apparel in the form of a diving suit and adapted to withstand high external …

1927 – Televox – Roy J. Wensley (American)

                         Whilst Roy James Wensley's "Televox" came about in 1927, he had invented and patented an earlier "supervisory control system" (patent filed in 1923).  This system was effectively a system that could "remotely control"  equipment via power lines, wireless, telephone lines, but not sound, which is how it is differentiated with the later "Televox".  Some articles give this earlier "supervisory …