Home
|
FAQ
Search:
Advanced
|
Person
|
Company
|
Type
|
Class
Login
Quick search:
Patent number:
Patent Date:
Patents for Nelson N. Spofford
Patents 1 - 2 of 2
Picture
Number
Date
Patentee
Title
237,780
Feb. 15, 1881
N.N. Spofford
Bit-stock
246,233
Aug. 23, 1881
N.N. Spofford
Ratchet bit-brace
Toggle print mode
Hide pictures
Copyright © 2002-2025 - DATAMP