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Patent number:
Patent Date:
US Patent: 3,332,317
Chalk screen image projector
Patentees:
Eugene F. Peckman (
exact
or
similar
names) - Pittsburgh, PA
Arthur W. Carlson (
exact
or
similar
names) - Muskegon, MI
Frank R. Torrey (
exact
or
similar
names) - Silver Spring, MD
USPTO Classifications:
353/44
,
353/98
,
434/408
Tool Categories:
Assignees:
E. H. Sheldon & Co.
- Muskegon, MI
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
May 19, 1965
Granted:
Jul. 25, 1967
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for E. H. Sheldon & Co.
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