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Patent
D321422
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Priority
Nov 02 1989
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Filed
Nov 02 1989
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Issued
Nov 05 1991
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Expiry
Nov 05 2005
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Assg.orig
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Entity
unknown
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10
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8
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n/a
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The ornamental design for a scraper to clean the fins of heat exchangers or the like, as shown and described.
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FIG. 1 is a top, front, and side perspective view of a scraper to clean the
fins of heat exchangers or the like showing my new design;
FIG. 2 is side elevational view taken along line 2--2 of FIG. 1;
FIG. 3 is a bottom plan view thereof; and
FIG. 4 is a rear elevational view taken along line 4--4 of FIG. 1.
Smith, Russell D.
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11122956, |
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11759084, |
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Patent |
Priority |
Assignee |
Title |
1906657, |
|
|
|
2084603, |
|
|
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2633594, |
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|
2856622, |
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3530524, |
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|
4667362, |
Jul 08 1985 |
PRESENTATION SYSTEMS, INC , |
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D284259, |
Aug 06 1984 |
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GB667749, |
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Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a