![UNIVERSITÄTSSCHULE JENA 1924-1950 - REVISITED | Hein Retter | 27 updates | 1 publications | Research Project UNIVERSITÄTSSCHULE JENA 1924-1950 - REVISITED | Hein Retter | 27 updates | 1 publications | Research Project](https://www.researchgate.net/profile/Hein-Retter/publication/316159192/figure/fig2/AS:1062085018546177@1630232209453/Rueckseite-des-Bandes_W640.jpg)
UNIVERSITÄTSSCHULE JENA 1924-1950 - REVISITED | Hein Retter | 27 updates | 1 publications | Research Project
![Amazon.com: Smoke Detector, X-Sense 10-Year Battery Smoke Fire Alarm with Photoelectric Sensor, LED Indicator & Silence Button, 1-Pack : Patio, Lawn & Garden Amazon.com: Smoke Detector, X-Sense 10-Year Battery Smoke Fire Alarm with Photoelectric Sensor, LED Indicator & Silence Button, 1-Pack : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/710U0+dek4L._AC_SS450_.jpg)
Amazon.com: Smoke Detector, X-Sense 10-Year Battery Smoke Fire Alarm with Photoelectric Sensor, LED Indicator & Silence Button, 1-Pack : Patio, Lawn & Garden
![Amazon.com: X-Sense Smoke Detector, Wireless Interconnected Smoke Alarm with 10-Year Battery Life, Wireless Smoke Detector, SD20-W, Pack of 3 : Patio, Lawn & Garden Amazon.com: X-Sense Smoke Detector, Wireless Interconnected Smoke Alarm with 10-Year Battery Life, Wireless Smoke Detector, SD20-W, Pack of 3 : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/61XkgNFuuSL._AC_SY355_.jpg)