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Patent US1561916 - GOTTHARD ERNST
GOTTHARD ERNST
GOTTHARD ERNST et al
› Overview
Abstract
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Description
Claims
Patent number
: 1561916
Filing date
: 3 Aug 1923
Issue date
: 17 Nov 1925
Inventors
:
GOTTHARD ERNST
,
GOTTHARD ERNST
Current U.S. Classification
:
441/136
;
441/131
View patent at USPTO
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Drawings
Drawings