Tungsten filament general service electric lamps

Mapping Intimacies ◽

10.3403/30305148 ◽

1936 ◽

Keyword(s):

Tungsten Filament ◽

General Service

Tungsten filament general service electric lamps

10.3403/30305149 ◽

1934 ◽

Keyword(s):

Tungsten Filament ◽

General Service

Tungsten filament general service electric lamps 210, 230, 240 and 250V

10.3403/30305145 ◽

1956 ◽

Keyword(s):

Tungsten Filament ◽

General Service

Tungsten filament electric lamps (other than general service lamps)

10.3403/30305774 ◽

1935 ◽

Keyword(s):

Tungsten Filament ◽

General Service

Specification for tungsten filament lamps for general service (with lives of 2000 h)

10.3403/00016483 ◽

1982 ◽

Keyword(s):

Tungsten Filament ◽

Tungsten Filament Lamps ◽

Filament Lamps ◽

General Service

Tungsten filament general service electric lamps

10.3403/30305147 ◽

1937 ◽

Keyword(s):

Tungsten Filament ◽

General Service

240V tungsten filament general service lamps

10.3403/30305144 ◽

1968 ◽

Keyword(s):

Tungsten Filament ◽

General Service

Specification for tungsten filament lamps for general service (with lives of 2000 h)

10.3403/00016483u ◽

2015 ◽

Keyword(s):

Tungsten Filament ◽

Tungsten Filament Lamps ◽

Filament Lamps ◽

General Service

Specification for tungsten filament lamps for general service (batch testing)

10.3403/00014551 ◽

1976 ◽

Keyword(s):

Tungsten Filament ◽

Batch Testing ◽

Tungsten Filament Lamps ◽

Filament Lamps ◽

General Service

Tungsten filament general service electric lamps

10.3403/30305146 ◽

1940 ◽

Keyword(s):

Tungsten Filament ◽

General Service

Tungsten filament electric lamps (other than general service lamps)

10.3403/30305775 ◽

1932 ◽

Keyword(s):

Tungsten Filament ◽

General Service