LAMPS, INCANDESCENT, T-12, MEDIUM PREFOCUSING, SINGLE CONTACT (S/S BY A-A-50450)
T-12白炽灯 中等预聚焦 单触点（S/S BY A-A-50450）

1992-01-24

LAMP, INCANDESCENT, T-12, MEDIUM SCREW, 3 CONTACT
白炽灯 T-12 中螺纹 3触点

2011-05-19

LAMP, INCANDESCENT, T-12, MEDIUM SCREW, 3 CONTACT
白炽灯 T-12 中螺纹 3触点

2011-05-19

LAMP, INCANDESCENT, T-8 CANDELABRA, PREFOCUSING, SINGLE CONTACT (NO S/S DOCUMENT) (SUPERSEDING MS15557)
单触点预聚焦T-8烛光白炽灯（无S/S文件）（取代MS15557）

1996-06-04

LAMP, INCANDESCENT, T-8 CANDELABRA, PREFOCUSING, SINGLE CONTACT (NO S/S DOCUMENT) (SUPERSEDING MS15557)
单触点预聚焦T-8烛台白炽灯（无S/S文件）（替代MS15557）

1986-08-10