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topic
Equipment
4
Telephone industry
4
name
x
Rosenfeld, Morris, 1884-1968
collection
"The Pageant of America" Collection
4
genre
Photographs
4
division
Wallach Division: Photography Collection
4
type
still image
4
Date Range
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4 results found for:
x
Machine-tool industry
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Name
: Rosenfeld, Morris, 1884-1968
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Title
Date created
Date digitized
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Frequence switch assembly,
machine
switching.
topic:
Telephone
industry
General view of
machine
switching
topic:
Telephone
industry
Pulse
machines
: an ingenious mechanism
topic:
Telephone
industry
Senders : the brain of the
machine
switching
topic:
Telephone
industry