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Patent
D942880
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Priority
Oct 30 2019
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Filed
Apr 28 2020
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Issued
Feb 08 2022
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Expiry
Feb 08 2037
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Assg.orig
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Entity
unknown
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5
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14
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n/a
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The ornamental design for a calibration apparatus, as shown and described.
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FIG. 1 is a front elevational view of a calibration apparatus showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a perspective view thereof.
The broken lines show portions of a calibration apparatus which form no part of the claimed design.
Wang, Yongshuai
Patent |
Priority |
Assignee |
Title |
10794996, |
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EDUARD WILLE GMBH & CO KG |
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D883121, |
Apr 20 2018 |
AUTEL INTELLIGENT TECHNOLOGY CORP., LTD. |
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D883122, |
Apr 20 2018 |
AUTEL INTELLIGENT TECHNOLOGY CORP., LTD. |
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D883123, |
Apr 20 2018 |
AUTEL INTELLIGENT TECHNOLOGY CORP., LTD. |
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D896288, |
Jan 26 2019 |
Dongguan Xinjia Laser Technology Co., Ltd. |
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D899471, |
Jan 05 2018 |
SHENZHEN CREALITY 3D TECHNOLOGY CO , LTD |
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Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a