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US4066329A
(en)
|
|
Optical adjustment knob with spaced apart platforms
|
|
US4240690A
(en)
|
|
Sliding finger plate focus adjusting device for a binocular
|
|
US2285388A
(en)
|
|
Adjusting system for field glasses
|
|
US4659194A
(en)
|
|
Binocular focusing mechanism
|
|
US198195A
(en)
|
|
Improvement in opera-glasses |
|
US2342843A
(en)
|
|
Gun-sight interpupillary adjustment
|
|
US1092224A
(en)
|
|
Attachment for field-glasses, &c.
|
|
US1967738A
(en)
|
|
Binocular
|
|
US1339386A
(en)
|
|
Telescope
|
|
US498019A
(en)
|
|
Mirror attachment for opera-glasses |
|
US838651A
(en)
|
|
Variable-power telescope.
|
|
US898653A
(en)
|
|
Prismatic double telescope.
|
|
US647136A
(en)
|
|
Opera-glasses.
|
|
US615229A
(en)
|
|
John henry barton |
|
US567215A
(en)
|
|
Bernard h |
|
US491711A
(en)
|
|
Louis w |
|
US468337A
(en)
|
|
Opera-glass |
|
US411527A
(en)
|
|
Emil bruno meyrowitz |
|
US1412442A
(en)
|
|
Double telescope
|
|
USD251197S
(en)
|
|
Focusing knob for binoculars
|
|
US666611A
(en)
|
|
Binocular glasses.
|
|
US687373A
(en)
|
|
Focal adjustment for binocular optical instruments.
|
|
US849237A
(en)
|
|
Prism monocular and binocular glass.
|
|
US351317A
(en)
|
|
Joseph frederck fradley |
|
US264130A
(en)
|
|
Bernard h |