The pulley Ben Ketina engineered for the sink in the Beit haMikdash: Zevachim 20a, 21b
The twelve spigots Ben Ketina designed for the sink in the Beit haMikdash: Zevachim 20a
Chaggai, Zecharyah, Malachi
R' Simlai testifying as to their practices in establishing the calendar: Rosh HaShanah 19b
Gevini Kruz
Announcing to the kohanim that the time had come to begin the day's service: Zevachim 21b