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Patent number:
Patent Date:
US Patent: 921,717
Grinding-machine
Patentee:
Abraham B. Landis (
exact
or
similar
names) - Waynesboro, PA
USPTO Classifications:
142/20
,
451/143
,
451/335
,
451/541
Tool Categories:
metalworking machines
:
grinders
Assignees:
None
Manufacturer:
Landis Tool Co.
- Waynesboro, PA
Witnesses:
E. W. Bradford
A. M. Parkins
Patent Dates:
Applied:
Mar. 29, 1906
Granted:
May 18, 1909
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Landis Tool Co.
Description:
Improvement to grinding machines for bottles with glass stoppers.
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