HD 222-1974
Standard Sheets for Barrel Thread for E14 and E27 Lampholder with Shade Holder Ring

Standard No.

HD 222-1974

Release Date

1974

Published By

European Committee for Electrotechnical Standardization（CENELEC）

Latest

HD 222-1974

HD 222-1974 history

• 1974 HD 222-1974 Standard Sheets for Barrel Thread for E14 and E27 Lampholder with Shade Holder Ring