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Creators:
Hashimoto, Kazuo
Kilby, Jack
Hashimoto Corporation
Dates:
1954-1994.
Size:
2 Cubic feet (2 boxes)
Collection ID:
NMAH.AC.0874
Repository:
Archives Center, National Museum of American History

Collection consists of material documenting early telephone answering devices.

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Creators:
Warshaw, Isadore, 1900-1969
Dates:
1819-1974
Size:
3.55 Cubic feet (consisting of 7 boxes, 1 folder, 3 oversized folders, 1 map case folder, 1 flat box (partial), plus digital images of some collection material.)
Collection ID:
NMAH.AC.0060.S01.01.Telephone
Repository:
Archives Center, National Museum of American History

A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Accounting and Bookkeeping forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana

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Creators:
Henderson, Daniel
Hashimoto, Kazuo
Dates:
1968-2002
Size:
3 Cubic feet (9 boxes, 1 oversized folder)
Collection ID:
NMAH.AC.0875
Repository:
Archives Center, National Museum of American History

The collection consists of photocopied American, Japanese, German, and French patents; photocopied articles, advertisements, news releases, user manuals, buyer's guides, company analyses, technical references, and an oversize timeline documenting the history and development of cellular phones and related wireless devices.

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Creators:
Warshaw, Isadore, 1900-1969
Dates:
1833-1975
Size:
3.21 Cubic feet (consisting of 7 boxes, 3 oversize folders.)
Collection ID:
NMAH.AC.0060.S01.01.Office
Repository:
Archives Center, National Museum of American History

A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Office Equipment forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana

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Creators:
Kopp, Harriet Green, 1917-
Dates:
1930-1950
Size:
4.75 Cubic feet (16 boxes)
Collection ID:
NMAH.AC.1130
Repository:
Archives Center, National Museum of American History

These papers relate to Kopp's work in visible speech technology, especially a project to develop a machine that would enable the deaf to understand the spoken voice; including biographical materials, research notes, lecture notes, spectrograms, research reports, log books, correspondence, slides and photographs, books, and documentation of grants f...

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Creators:
Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)
Dates:
circa 1847-1989
Size:
36 Cubic feet (124 boxes, 3 map-folders)
Collection ID:
NMAH.AC.0069
Repository:
Archives Center, National Museum of American History

Original documents and papers generated by William J. Hammer and by various companies and individuals with whom he was associated. Includes material related to the research and inventions of Edison, Bell, Tesla, the Curies, etc.

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Creators:
Safko, Lon S.
Dates:
1984 - 1996
Size:
12.6 Cubic feet (34 boxes)
Collection ID:
NMAH.AC.0911
Repository:
Archives Center, National Museum of American History

The records of Safko International, Inc., document an assistive computer technology company created by Lon S. Safko to produce and sell the environmental control systems he invented for the physically disabled, specifically quadriplegics. Through the use of a computer and alternative input devices, the physically disabled were able to overcome physical barriers which inhibited them from attaining an autonomous lifestyle.

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