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Patent number:
Patent Date:
US Patent: 187,513
Improvement in bridges
Patentee:
Ellery E. Colby (
exact
or
similar
names) - Groton, NY
USPTO Classifications:
14/13
,
14/14
,
14/15
,
236/68A
,
52/639
Tool Categories:
manufacturing
:
manufacturing processes
:
bridges
structures
:
bridges
Assignees:
Charles Perrigo
- Groton, NY
Caleb Bartholomew
- Groton, NY
Oliver Avery, Jr.
- Groton, NY
Ellery E. Colby
- Groton, NY
Manufacturer:
Groton Iron Works
- Groton, NY
Witnesses:
Frank Galt
Frank H. Duffy
Patent Dates:
Applied:
Jan. 29, 1877
Granted:
Feb. 20, 1877
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Groton Iron Works
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