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Henry D. Williams
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Henry D. Williams
Henry D.
Williams
Year
1900
Subject
Engineering
Award
Longstreth
Lever and Ratch Attachment.
Buy Tickets
Visit
Tickets
Plan Your Visit
Accessibility
Frequently Asked Questions
Daily Schedule
Museum Map
Getting Here
Where to Eat & Stay
Exhibits & Experiences
All Exhibits & Experiences
Universal Theme Parks: The Exhibition
Wondrous Space
Body Odyssey
Science Park
Upcoming Events
Events Calendar
Science & Education
Staff Scientists
Collection Highlights
Benjamin Franklin Resources
Scientific Journals of The Franklin Institute
Professional Development
The Franklin Institute Awards
About Awards
Class of 2026
Ceremony & Dinner
Sponsorship
Call for Nominations
Case Files
Committee on Science & The Arts
Exhibit Resources for Educators
Next Generation Science Standards
Title I Schools
Neuroscience & Society Curriculum
Youth and Community Programs
Science of Soccer
PACTS
STEM Scholars
GSK Science in the Summer™
Children's Vaccine Education Program
Franklin @ Home
Support
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Group Visits
Plan an Event
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