Moscow State Institute of Radio-engineering Electronics and Automation | October 25, 2001 - Donetsk: August 10, 2012 | Andrey Melentev | October 25, 2001
Helen Blanchard
- Portland: October 25, 1840 celebration
- Providence: January 12, 1922 celebration


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account_circle Username
Helen Blanchard -
flag Country
United States -
wc Gender
Female -
badge Full Name
Helen Blanchard -
assignment_ind Surname
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tv_signin Nickname
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identity_platform Alias
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celebration Date of birth
Portland: October 25, 1840 -
deceased Rest in Peace
Providence: January 12, 1922 -
language Official Website
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engineering Field of Work
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local_library teacher
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person_book Student
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school Education
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trophy Awards & Honors
- National Inventors Hall of Fame (2006)
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social_leaderboard Notable Works
- American inventor (1840–1922) | National Inventors Hall of Fame (2006) | Portland: October 25, 1840 - Providence: January 12, 1922 | Helen Blanchard