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Polhemus (edit)

Revision as of 08:40, 25 May 2024

17 bytes added ,  08:40, 25 May 2024
→‎Patents
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==Patents==
 
==Patents==
 
* [[US3983474A]] - 1975 - [[Jack Kuipers]]
 
* [[US3983474A]] - 1975 - [[Jack Kuipers]]
 +
* [[US4017858A]]
    
* [[US20050285591A1]]
 
* [[US20050285591A1]]
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