Drilldown: Patents
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Patents > Year granted:
1900 - 1909
& Office :
DK or
US
& Inventor country:
US
& Applicant is inventor:
No
& Assigned to :
L W F Engineering Company or
Morley Button Manufacturing Company, Boston, Massachusetts
& National tech categories :
FR 6.3 or
USPC 24/713.8
& Number of text pages:
1-2
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Showing below up to 1 result in range #1 to #1.