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Patent US849570 - HYDROSCOPE
HYDROSCOPE
GIUSEPPE PINO et al
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Abstract
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Description
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Patent number
: 849570
Filing date
: Sep 23, 1903
Issue date
: Apr 9, 1907
Inventors
:
GIUSEPPE PINO
,
GIUSEPPE PINO
Current U.S. Classification
:
359/402
;
114/66
;
359/895
View patent at USPTO
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Referenced by
Citing Patent
Filing date
Issue date
Original Assignee
Title
US5526177
Feb 14, 1994
Jun 11, 1996
Mobi Corporation
Dual-view, immersible periscope
US5644438
Oct 30, 1995
Jul 1, 1997
Optical device for viewing into restricted areas
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