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Patent applications and USPTO patent grants for Weinhold; Gerd.The latest application filed is for "apparatus for setting up a ladder or a step on a staircase".
Patent | Date |
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Apparatus for setting up a ladder or a step on a staircase Grant 10,612,304 - Fischer , et al. | 2020-04-07 |
Apparatus for Setting Up a Ladder or a Step On A Staircase App 20180223597 - FISCHER; Christian ;   et al. | 2018-08-09 |
Step Ladder App 20140262621 - Muller; Gerhard ;   et al. | 2014-09-18 |
Ladder App 20140262617 - Mulller; Gerhard ;   et al. | 2014-09-18 |
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