dˈɑːktɚ. kɹˈoʊbɚ ænd sˈoʊn dʒˌiːˌɛmbˈiː ˈeɪtʃ fˈɔːɹmɚli dʒˈeɪɚ dˈæmpfmɛsɚ dʒˌiːˌɛmbˈiː ˈeɪtʃ wʌzɐ lˈoʊkəl fˈɜːm ðæt mˌeɪd stˈiːm, ɡˈæs ænd flˈuːɪd ɡˈeɪdʒᵻz, smˈɔːl ɪntˈɜːnəl kəmbˈʌstʃən ˈɛndʒɪnz, ænd ðə kɹˈoʊbɚɹ ˈɛm fˈoːɹ lˈaɪt ˈɛɹkɹæft ˈɛndʒɪn.
Dr. Kroeber & Sohn GmbH (formerly Gehre Dampfmesser GmbH) was a local firm that made steam, gas and fluid gauges, small internal combustion engines, and the Kroeber M4 light aircraft engine.