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Patent number:
Patent Date:
US Patent: 710,476
Closure for retorts
Patentees:
Frank Watts Burpee (
exact
or
similar
names) - Bellingham, WA
James Moore K. Letson (
exact
or
similar
names) - Vancouver, BC Canada
USPTO Classifications:
144/271
Tool Categories:
specialty machines
:
canning apparatus
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
May 05, 1902
Granted:
Oct. 07, 1902
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Letson & Burpee, Ltd.
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