![]() ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US139348A Inventor William O Hammer Original Assignee William O Hammer Priority date (The priority date is an assumption and is not a legal conclusion. Google Patents Collimating apparatus for aligning prism-type binocularsÄownload PDF Info Publication number US2129130A US2129130A US139348A US13934837A US2129130A US 2129130 A US2129130 A US 2129130A US 139348 A US139348 A US 139348A US 13934837 A US13934837 A US 13934837A US 2129130 A US2129130 A US 2129130A Authority US United States Prior art keywords telescopes binoculars barrel axis aligning Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US2129130A - Collimating apparatus for aligning prism-type binoculars US2129130A - Collimating apparatus for aligning prism-type binoculars
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