American National Standard for Electric Lamps--Dimensions for Projection Lamps--Double-Contact, Medium Ring (Special B), Base-up Type
美国电灯国家标准投影灯尺寸底座式双触点中环（特殊B型）

2016-01-06

American National Standard for Electric Lamps - Condenser-Reflector, Four-Pin Prefocus-Base Projection Lamps - Dimensions
美国电灯国家标准.聚光反射器 四针预聚焦底座投影灯.尺寸

2015-07-24

American National Standard for Electric Lamps - Condenser-Reflector, Four-Pin, Prefocus-Base Projection Lamps-Dimensions
美国国家电灯标准.四针聚光反射器预聚焦底座投影灯尺寸

1985-02-08

American National Standard Dimensions for Projection Lamps-Four-Pin, Prefocus, Base-Down Type
美国国家标准底座向下型四针预聚焦投影灯尺寸

1975-06-05

American National Standard for Electric Lamps - Single-Contact Medium Prefocus Base-Down-Type Projection Lamps-Dimensions
美国电灯国家标准.单触点介质预聚焦底座向下型投影灯尺寸

1983-08-19

American National Standard for Electric Lamps - P28 Single-Contact Medium Prefocus-Based Projection Lamps for Base-Down Operation - Dimensions
美国电灯国家标准.底部向下操作用P28单接触介质预聚焦投影灯.尺寸

2015-07-24

American National Standard for Electric Lamps - Two-Inch (51-mm) Integral-Reflector-Rim Reference Projection Lamps Dimensions of Centering Systems
美国电灯国家标准.2英寸（51mm）集成反射器边缘基准投影灯.定心系统的尺寸

1989-03-31