Reference numerals / Apparatus for generating hydrogen gas and related gases from water / Numerals (59) Showa Where it is first named 3. Application Date: Showa 59 (1984) April 5 — Apparatus for generating hydrogen gas and related gases from water How it is written (Showa 59) 2× Where it is named · 2 Apparatus for generating hydrogen gas and related gases from water 2× Showa (Showa 59) 3. Application Date: Showa 59 (1984) April 5 Read it there → Showa (Showa 59) 8. Issue Date: Showa 59 (1984) April 5 Read it there → ← (15) February