Patent Model - Improvement in Attachments for Carpenters' Squares
Maker and role
John Hyman, Patentee
John Hyman, Assignee
Samuel Sherrerd, Assignee
Production date
Mar 11 1873
See full details
Object detail
Media/Materials
Wood, iron, brass
Measurements
10 x 6" (25.4 x 15.2cm)
Description
Hyman's patent "provides an instrument that can be used as an ordinary square, a tri-square, center-square, miter-square, or bevel-square..." (Patent Number 136,653)
Collection
Object number
2015.14.1545a,b
Currently on display?
Maker
Public comments
Be the first to comment on this object record.