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Patent applications and USPTO patent grants for Ruppert; Albert L..The latest application filed is for "reflective readout device".
Patent | Date |
---|---|
Reflective Readout Device Grant 3,739,512 - Ruppert June 19, 1 | 1973-06-19 |
Linear Prism Display Grant 3,664,047 - Ruppert May 23, 1 | 1972-05-23 |
Rocker Arm Prism Display Grant 3,653,136 - Ruppert April 4, 1 | 1972-04-04 |
Rotary Prism Display Grant 3,636,915 - Ruppert January 25, 1 | 1972-01-25 |
Door Lock With Prism Display Grant 3,600,916 - Ruppert August 24, 1 | 1971-08-24 |
Arcuate Prism Display Grant 3,590,773 - Ruppert July 6, 1 | 1971-07-06 |
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