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Patent
D847881
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Priority
Jan 30 2018
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Filed
Jan 30 2018
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Issued
May 07 2019
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Expiry
May 07 2034
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Assg.orig
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Entity
unknown
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0
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10
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n/a
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The ornamental design for air-operated grinding device, as shown and described.
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FIG. 1 is a front view of the air-operated grinding device showing our new design;
FIG. 2 is a back view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a perspective view thereof; and,
FIG. 8 is another perspective view thereof.
Guo, Biao, Jia, Yong An
Patent |
Priority |
Assignee |
Title |
Patent |
Priority |
Assignee |
Title |
10137554, |
Aug 23 2016 |
Techway Industrial Co., Ltd. |
Hand-held belt sander |
3611646, |
|
|
|
4578906, |
Nov 08 1983 |
Seco Engineering Co., Ltd. |
Grinding tool |
4707944, |
Feb 18 1986 |
|
Apparatus for honing a cylinder |
D321465, |
Aug 31 1988 |
Nitto Kohki Co., Ltd. |
Portable belt sander |
D331585, |
Jun 06 1990 |
|
Grinding instrument |
D338901, |
Jan 02 1992 |
|
Grinding machine |
D339811, |
Dec 21 1990 |
P.A. Products Pty. Ltd. |
Belt grinding device |
D395054, |
Apr 04 1997 |
Dainaka Seiki, Inc. |
Stone grinding and polishing machine |
D620509, |
Jan 27 2009 |
Airtec AG |
Mobile grinding machine |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a