Abstract
Get full access to this article
View all access options for this article.
References
1.
Baker, H. E.
(1969 ) The Colored Inventor . New York : Arno Press
2.
Balch, S. W.
(1895 ) "Electric motor regulation ." Cosmopolitan (April): 761 -762 .
3.
Davis, J. P.
(1966 ) American Negro Reference Book . Englewood Cliffs, NJ:
Prentice-Hall .
4.
Katz, W. L.
(1971 ) Eyewitness: The Negro in American History . New York : Pittman .
5.
Marr Ii, W.
and
H. Ploski
(1971 ) The Negro Almanac: A Reference Work on the Afro-American . New York : Bellwether .
6.
Ploski, H. A.
,
O. J. Lindenmeyer
, and
E. Kaiser
[eds.] ( 1971 ) Reference Library of Black Americans . New York : Bellwether .
7.
Toppin, E. A.
(1971 ) A Biographical History of Blacks in America Since 1528 . New York : McKay .
8.
U.S. Patent Office
(1891 ) Official Gazette . Volume XVII. Washington DC : Government Printing Office .
9.
——— (1888 ) Official Gazette . Volume XLIII. Washington DC : Government Printing Office .
10.
--- ( 1887 ) Official Gazette . Volume XXIX. Washington DC : Government Printing Office .
11.
——— (1884 ) Official Gazette . Volume XLI. Washington DC : Government Printing Office .
12.
Woodson, C. G.
and
C. H. Wesley
(1962 ) The Negro in Our History . Washington : Associated Publishers .