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Patent
   D255783
Priority
Dec 21 1977
Filed
Dec 21 1977
Issued
Jul 08 1980
Expiry
Jul 08 1994
Inventors
Hays, Rona…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
1
References
4
Maint.:
n/a
The ornamental design for a letter bomb detector, as shown and described.

FIG. 1 is a top and right front perspective view of a letter bomb detector showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof.
INVENTORS:

Hays, Ronald B.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D285485, Nov 25 1983 CAMBRIDGE INSTRUMENTS INC , A DE CORP Refractometer
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
3893022,
193480,
203623,
232657,
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