Portable abdominal machine

The ornamental design for a portable abdominal machine, as shown and described.

FIG. 1 is a perspective view of the portable abdominal machine showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Patent	Priority	Assignee	Title
D886919,	Feb 18 2018		Exercise bench
D907144,	Oct 19 2018	ZHEJIANG KAONA KEJI CO ,LTD	Dumbbell bench
D933762,	Jun 04 2020	ALL MARKET UNITED STATES LIMITED	Bench
D933763,	Jun 04 2020	ALL MARKET UNITED STATES LIMITED	Bench
D934358,	Mar 20 2020	YONGKANG HONGDU INDUSTRY AND TRADE CO , LTD	Sit-up exercise device
D939033,	Jul 07 2020	Rep Fitness, LLC	Adjustable weight bench
D944905,	Jun 04 2020	ALL MARKET UNITED STATES LIMITED	Bench
D973157,	Apr 07 2022	Zhengzhou Anfen Trading Co., Ltd.	Abdominal trainer
ER3279,
ER3443,
ER3953,
ER44,
ER5033,
ER6323,
ER6643,
ER6929,
ER8671,
ER9389,

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